Possible Business Idea

Hello, I'm taking a business class in college, and I need some feedback for a potential business. The questions are pretty basic, and I would appreciate it if you could take the time to fill out my form. Thank you for your time! If you could comment on your responses, that would be fine, or you can use the link https://docs.google.com/forms/d/1qN1bXfEFLhq3qUipriT0bC_rgujfpnNsmoyXDbWxV5Q/edit Do you collect LEGO? What websites/stores do you buy LEGO from? What is the hardest part about...