[ POLL ] Should the Practice Tool Allow Players to Choose Any Champ?

I really like the Practice tool, however, it is frustrating that I am not allowed to pick anyone I want in it. There are times i want to try a champion before i buy it, so that i can try builds and some playstyles for them. I also would like to add to it, that by playing that champion I do not own, I can see what his scalings are (which i can't see until I play the champ) and how he/she works with certain runes. By limiting us to only champions we own, it prevents new players to try out champions that they might like to buy.

Many of Riot's ads online states that there is a champion for everyone, but if you limit how they can explore certain champion playstyles they may have a hard time finding a comfortable champion. Even for me, After months of playing, I have yet to play all the champions I wanted to try, and the information on the champion information screen is too limited for my tastes. I want everyone have a chance to "test drive" a champion before they buy.