There are plenty of reasons to work for a company that you don't personally think will be successful:

1. You believe in their mission (e.g working for a newspaper even though that industry is in real trouble) 2. You have constraints around when and where you can work - limited to a certain town, need part-time work 3. They offer a high salary for your specific skills - sure, they might be out of business in a few years but you can make good money for the moment