DUDES! mmorpgs are NOT Smash Brothers!
But on the topic of PSO, im pretty sure you can download and play the PC version on Japanese servers for free (in english). I used to a couple years ago and Im pretty sure some guys i know are still playing it. So dont waste your cash on WoW or GWs.
But, my suggestion would be to wait for Phantasy Star Universe, for people who are unfamiliar with the PSO/PSU play style, the town area/lobby is the only place you have to deal with random *******, you group/party up in the lobby, and head off into the game, which you have all to yourself and your party (YAAAY!!!), i know some people like having random people run around but I found that after awhile playing WoW i would forget why the **** i was even playing, PSO feels like your actually playing a VIDEO GAME, not a jogging simulator, I suppose the whole game world could be described as a giant instance dungeon (if you play WoW) and is comparable to Diablo 2, simply in the sense that you group up, kill **** and its fun!
Now get back to playing Smash Bros!