Oh so the whole argumenet boils down to "I wanna play an MMO only 1 month a year" which....
1- is not how MMOs work
2- if everybody was like you they'd have failed financially 9 years ago
If you wanna burn huge amounts of content all at once and then leave, maybe offline games are more your thing.
YoshiP begs to differ.

Yoshida "It's alright not to play it everyday. Since it's just a game, you can stop forcing yourself if it's hard on you to keep that up. Rather, it'll just pile up unnecessary stress if you limit yourself into playing just that one game since there are so many other games out there. So, do come back and play it to your heart's content when the major patch kicks in, then stop it to play other games before you got burnt out, and then come back for another major patch. This will actually make me happier, and in the end, I think this is the best solution I can answer for keeping your motivation up for the game."