Need more expensive elixirs.
Lategame, there is nothing to spend your gold on. We could really use a class of 3000 gold elixirs. They dont even have to be that strong, just something to get after we are maxed out.
I think the reason they do not do this, is to discourage farming after you are maxed, to allow everyone on the team to get full build. I think this is not the best way to handle the endgame. Smite basically has league of legends item system and they have 3000 gold full build elixirs. And it works out very nicely in that game.