Well, as mentioned here already, with 32 heroes it's hard to figure out which you want to use - say you picked one that isn't as fun as you thought, then what? Make a new account I guess. Other games have "starter" cards that can't be sold, broken down, etc so you can play each class to have an idea which one you want to expand into. Obv SE is different but thats why the new player experience here is quite different - for better or for worse.