Answers.Body: <p>It's known as the "<a href="https://en.wikipedia.org/wiki/Coupon_collector%27s_problem" rel="nofollow noreferrer">Coupon collector's problem</a>". To get all 12 you would on average need to buy 38. Buying a whole box (or finding someone who did and buying a set from them) seems like a much more attractive solution.</p>
  
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Answers.Text: I've usually waited until after the hooplah is over to buy a complete set from someone on Amazon or Bricklink.  But we really liked this series and thought we should try our hand at it.  Now I guess I have a lot of extras to sell on Bricklink.  :-)
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Answers.Body: <p>If you are on good terms with your lego store, you could buy an unopened box with 60 bags which will guarantee you to have 5 of each. You shouldn't have much difficulty selling the other series, even if the bags are opened, to get your money back. </p>
  
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Answers.Text: Really?  Have people tried this and it actually works out?
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Answers.Text: I don't think @Michael sugested that you can get your monay back in a LEGO store, but rather that you could get them back by selling the other bags.
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Answers.Text: Yes, I ment reselling to others... people are willing to pay more if they know the contents of the bag or have immediately the entire series... I know several who managed to get their own series for free by reselling the other 4.
Answers.UserDisplayName: Michael Verschaeve
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Answers.UserDisplayName: Michael Verschaeve
Body: <p>Despite <a href="https://bricks.stackexchange.com/questions/758/is-there-a-reliable-way-to-determine-what-minifigure-is-in-a-lego-minifigures-se">helpful prior answers</a> about squeezing polybags to determine contents, the new <a href="https://brickset.com/sets/theme-Unikitty!/subtheme-Blind-bags-series-1" rel="nofollow noreferrer">Unikitty! series</a> seems <a href="https://forum.brickset.com/discussion/28466/lego-unikitty-collectible-minifigure-series-the-bag-feelers-nightmare" rel="nofollow noreferrer">pretty immune</a> to this sort of the effort since all of them are in one of 3 shapes and there are inner bags which make it even harder to feel the parts.  So I bought a bunch of polybags from two different stores in the same town.  After buying 25+ polybags I'm still 5 short of the set.  Is it just bad luck or is my guess of the odds that far off?</p>
  
  <p><img src="https://us.v-cdn.net/5015319/uploads/editor/lg/zwhb5076z9b8.jpeg" alt="unikitty series 1"></p>
  
Tags: <shopping><collectable-minifigures>
Title: How many polypags would I need to get to have good odds of getting all in the series?
UserDisplayName: chicks
ThreadText: # How many polypags would I need to get to have good odds of getting all in the series?
  
  (Asked by: username_0 on 2018-08-15)
  
  Despite [helpful prior answers](https://bricks.stackexchange.com/questions/758/is-there-a-reliable-way-to-determine-what-minifigure-is-in-a-lego-minifigures-se) about squeezing polybags to determine contents, the new [Unikitty! series](https://brickset.com/sets/theme-Unikitty!/subtheme-Blind-bags-series-1) seems [pretty immune](https://forum.brickset.com/discussion/28466/lego-unikitty-collectible-minifigure-series-the-bag-feelers-nightmare) to this sort of the effort since all of them are in one of 3 shapes and there are inner bags which make it even harder to feel the parts. So I bought a bunch of polybags from two different stores in the same town. After buying 25+ polybags I'm still 5 short of the set. Is it just bad luck or is my guess of the odds that far off?
  
  ![unikitty series 1](https://us.v-cdn.net/5015319/uploads/editor/lg/zwhb5076z9b8.jpeg)
  
  **Tags:** shopping, collectable-minifigures
  
  ---
  
  ## 2 answers
  
  ### Answer by username_1 on 2018-08-15. Score: 3
  
  It's known as the "[Coupon collector's problem](https://en.wikipedia.org/wiki/Coupon_collector%27s_problem)". To get all 12 you would on average need to buy 38. Buying a whole box (or finding someone who did and buying a set from them) seems like a much more attractive solution.
  
  > **Comments:**
  > **username_0**: I've usually waited until after the hooplah is over to buy a complete set from someone on Amazon or Bricklink.  But we really liked this series and thought we should try our hand at it.  Now I guess I have a lot of extras to sell on Bricklink.  :-)  
  
  ---
  
  ### Answer by username_2 on 2018-08-15. Score: 1
  
  If you are on good terms with your lego store, you could buy an unopened box with 60 bags which will guarantee you to have 5 of each. You shouldn't have much difficulty selling the other series, even if the bags are opened, to get your money back.
  
  > **Comments:**
  > **username_0**: Really?  Have people tried this and it actually works out?  
  > **username_1**: I don't think @Michael sugested that you can get your monay back in a LEGO store, but rather that you could get them back by selling the other bags.  
  > **username_2**: Yes, I ment reselling to others... people are willing to pay more if they know the contents of the bag or have immediately the entire series... I know several who managed to get their own series for free by reselling the other 4.  
  
  ---
  
  