Yet again, watch this video http://www.youtube.com/watch?v=ns-II...layer_embedded
10 years ago MMOs needed a subscription to pay for servers but now it's way different.
If the money went into development of content it would be a different deal but it goes into lining SE pockets. Do you get 4 expansion packs worth of stuff every year for 15 bux a month you paying? Hell no, in XIV we dint even get 1 expansion pack worth.
If they willing to release major content every 3 months, and I mean a patch size of 1.19 with more content gear wise, raid, wise, zone wise, sure I'd be willing to pay. If we pay subscription we shouldnt pay for expansions.
However, as SE usually does they will charge you for playing the game and than sell you expansion separately.