[cannibal]

Make sure that the business aligns with your goals and needs. A little research can go a long way.

Does it provide value that people are actively seeking, or will you need to put in long hours to convince people of its value?

How do others monetize the business and did it work? Why or why not? What will you do differently? Why?

Why was it bought and closed? Have you talked to anyone involved in that decision? Have you attempted to talk to someone who has knowledge of the situation? There are most definitely factors that you are not considering because you weren't involved. Like they say, you only know what you know.

Those are just some example questions to ask yourself. Figure out what questions make sense for you and your business/idea.