I love tournaments. For me it's really exciting to run deep in a tournament, invest a small amount of money and having the chance of making loads of cash. I may be more profitable playing cash, but as poker is a hobby for me, I prefer having fun at tournaments.
For me, bounty tournaments, since knocking out players can return your buy-in and continue playing calmly. And at regular tournaments, if you don't get on the prize table, it will be a shame and a waste of time)