The seasons are a lot cheaper than WoW... You're talking about the same amount of content that Blizzard time gates and charges you $15/month whenever you want to play it very Anet that offers it free first then asks a one time price of < $10 for the ENTIRE season if you miss the free period. On top of that you can buy the content with in-game gold for a pretty low price vs a WoW token that is most players can't afford.