Often I find it difficult to really get into games nowadays unless I get at least a little customisation. It's why I love games like TF2 which offer a great amount of customisation both through loadouts and cosmetics, and RPGs like Fallout and Skyrim where you can be pretty much anyone. At the very least, I'd like a big roster of characters, chances are I'll identify with something. Timesplitters was great for that, but that said I have trouble getting into Dota when the characters just aren't in a style which feels cool to me.