I somewhat sympathize with OP.
but I know that's not reality. as others have stated the industry standard for paying/playing MMOs is that you buy the game then buy subscription.
I believe that income for MMOs is on the subscription and not the initial purchase.
Having said that, I was happy to have a month of game access to play the game initially and considered it a good trade off.
And for all I know, perhaps not everyone that buys the game stays subscribed. I'm sure the industry has figured out a way to maximize on their investments.