A company needs to buy office chairs for their new office. They have two options: Option A costs $150 per chair and requires assembly, while Option B costs $200 per chair and comes pre-assembled. If the company needs to buy 20 chairs and estimates that assembling each chair from Option A will take 1 hour of labor at a rate of $25 per hour, how much money, in dollars, will the company save by choosing Option A over Option B? Let's think step by step and output the final answer within \boxed{}.
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