One-time payment and then like $20/$30 expansions.
GW1 is $20 on Steam, expansions are $30, but they're standalone
But GW1 is boring as hell after a while unless you actually HAVE STUFF TO DO, otherwise it's repetitive as forget.
And you need 25 people to kill
one enemy after a while.
It was awesome when I first got it, but now it's just... Meh, log on, check friends, check dying Guild, try to sell stuff, not sell anything, log off.
I still have stuff I wanna sell. But I like chatting with the community though, it's pretty decent.