Its still by far the best MMORPG out there and this won't change with anythng but another Blizzard MMORPG(cross the fingers for TItan!)
All those WoW Killers have like 10 players left only after 1 month cause they lack everything a MMORPG needs > Endgame.
Star Wars has such a beautiful story! - Yeah 2 days later your max level and can't do shit - Raids were clear after 1 night and were designed for "new players" LOL
Guild Wars 2 has such awesome PvP! - Yeah even more unbalanced than the current MoP PvP and absolutely no rewarding system.And of course no raiding Endgame.
And i don't say WoW is awesome or anything like that.
Its just the best MMORPG existing - There is nothing that comes close and this is sad cause WoW is far away from its prime.
Just shows how bad all the other MMORPGs are if they can't overthrone WoW in its current state.
FF14 will be the next one to fail...again.
For me clearly WoW if you count the monthly sub and all the addons since release minus 1 year of pause through Cataclysm.
A single game would be Valkyrie Profile from the PS1 - Did spend a lot on it cause we never got it in Europe and it was at the time that game went for insane amounts of money on ebay.