Usually, I hate criticizing people. But really, like so many other people have said (and been ignored), I figured I'd say it again: There is no variety.
It's like Riot has picked out 15-20 of the 109 champs and just continuously rotates through them. Dr. Mundo? Free 4 weeks ago. Cho'Gath? 4 weeks ago. Kog'Maw? Hey, whadd'ya know? 4 weeks ago. Teemo? 4 WEEKS AGO. Really Riot? Really?
Now, let's look at the other end of the spectrum.
Karma? It's been a year Riot. Cass? 7 months. Fiora? Half a year. Oh, what about this one: TRISTANA. 18 MONTHS.
C'mon Riot. You say you want to make it easy on new players, yet you only give new players a very limited amount of champs to try out. And everyone else that plays? Well, every time you want to try out someone new, you have to go and play your heart out to save up IP because you darn well know Riot isn't gonna have them free any time soon.
Black Kitten out.