I have never thought it is worth it, even back when WOW released, the economy was better and I was a teenager with a lot more disposable income I would never pay for a subscription to play a game. It is just a terrible way to run a game and I have always thought that.
I've never really understood why people would support that kind of model personally, there has never been a justification in my book.
Back then Guild Wars 1 was and always will be the far superior game when put up against WOW in my personal opinion and once I'd paid for that I could play it every month without further outlay. Shame how they ruined it with GW2 (unpopular opinion I'm sure but I stand by it xD)
I really want to try Unbound, it is the first title that has looked interesting to me in the NFS series for a while it is just a shame that I have to use their launcher, if this wasn't the case I might actually even be willing to break my rule of not giving EA any money (although I would buy it when it was on deep sale that they have fairly often). Shame.