DoTA2 has west coast server, so much better ping post server move
So I've pretty much mad the switch, though admittedly DoTA2 is more complex and I can't tell if all that extra complexity actually feeds into more tactics/strategy yet.
I still don't fully get the motivation for not making west coast server though. Riot spouted some stuff about keeping community together, which I guess means they think west coast would get non-viable dominion etc. late at night, and maybe end up with diamonds in with golds for late-night ranked.
BUT. The west-coast diamonds would probably rather hazard an occasional match with golds, rather than play other diamonds at 40 ms ping disadvantage. Dominion etc. could have gone to Chicago late at night if they wanted to do the work to make it so.
I don't believe Riot would really be scared of the work required to make a hybrid solution. They have the resources and the attitude to do this kind of simple but boring work when needed. So what's the real reason?
I hate to be paranoid, but I'm tempted to speculate that they wanted to boost 2/3 of the player base and shove the others down for a while. The 2/3 will get a rating boost, get happy, play more, buy more, etc. Its somewhat like the effect the champion buff/nerf rotation has. Eventually they'll get around to doing a west coast server, rather than just leave the current situation where DoTA2 is a far more attractive option, and then west coast players can get happy and buy things.