Champion Package

I play Smite every now and then but one thing that I always thought was cool was that they have this thing where you pay 30Dollars and get all Current and Future Gods. So why doesnt League have something like that? I mean It would be great. heck with the amount of Champions there are I would gladly pay 40Dollars for that. I just wonder why a company wouldnt want money. when people use RP its generally for either Chests or Skins I never really hear about people (aside from Streams who only play 1 character) spending RP to buy a champion. Im sure someone is going to say how stupid this is.