I am not a dotard. But I can give you a good suggestion. Asia Cafe at night only

Any game can be the same if you play it at pro level mister.

DotA competitions are everywhere because it happens to be very popular among the gaming society. For what reason I do not know. Could be the low graphics required to play the game (so you can probably play in any CC or even with a low-end rig) and the level of randomness you can find in the game (that attracts so many people).

For me, it was simply to entertain my friends when they ask me out

Anyway, it's just a matter of preference. You still like it, I don't anymore

Look what DotA did to you