Maybe there is really no dead industry in a sense; you just never know what idea may take off and what ideas may not take off. It can be tough to decide what industry you want to invent something in. Sure, it may be great to invent something in a new and upcoming industry. Who would not want to do that? But sometimes you may find life where there has not been some in a long time.

If your idea works to you, no matter what market it is in, you have to then decide whether or not you want to move forward with it. Maybe you can bring a dead market back to life.