I've only been able to check out the one I own but I think that the amber Infinity is really cool. Mine is dimmer than any of my other Infinitys and is perfect for things like checking menus, wine lists and reciepts in dimly lit rooms where most other lights would be way too bright.
I got mine at TheLedLight's Bargain Basement, which has a few left at $14.80. The one I got from them had a nice beam with no annoying holes.
The many reviews of the Infinities will live on online. In the future people will read them and wonder what ever happened to these great lights that so many people loved.