Alice worth it at $5? Been waiting for it
If you've been waiting for it you should bite. I doubt it will go cheaper for at least another year. It can feel a little stretched in a few levels but the combat is fun and the environments are gorgeous. There were a couple levels I would just sit back and look at the world before I even bothered continuing with the game.
Overall I would say it's worth $5. Just be prepared to use a controller. The menus at least felt very m+kb unfriendly.