Not all games work well in the free model. You could kill your product by releasing a free version if you have wrong type of game. This, generally, is an advant

Not all games work well in the free model. You could kill your product by releasing a free version if you have wrong type of game. This, generally, is an advantage for puzzle games with interesting mechanics. It's also better to react with a lite version if you see initial success with your product. If you have something good you'll see a positive reaction, but if you're bouncing around 0-5 sales/day, early in the release, a lite version is probably not going to do much.