I'm still waiting for DoTA 2's asking price and what upgrades it brings beyond a better net/lobby service and graphics. It's a goofy personal belief, sure, but I'm not a fan of the way a lot of MoBA design has been to worship at the altar of the original map and never improve in any way. Riot took a comically long time to do so and abandoned Magma Rift along the way, but it's really good to see a strong spread of gameplay options.
I can play both, but if DoTA 2 tries to charge me $50 up front with nothing more than nostalgia appeal(Oh man, I can play a few Pugna/Prophet/Techies/Centaur rounds!), it'll be pretty easy to ignore it in favor of my goofy time/money sunk into LoL already. Granted comparing retail price to skins is silly, but I vastly enjoy LoL and like Zed said, putting good time into two MoBAs at once is a bit daunting. So I'm curious as to the entry fee to get in those nostalgia rounds, since Prophet was the best map control hero in the world.
If they've already announced DoTA 2 as free then welp OK then, see you on it later.