I believe regardless of what people say initially, I think many would pay the fee.
Many pay subscription for foxtel yet we all know it's not worth it. Many pay ridiculous fee's for a gym membership, but we still do it.
List goes on and on and at the end of the day, whilst you still find enjoyment in it, you'll find a way to justify spending the money.
I for one won't be paying a subscription for an FPS game, although MMO with regular content updates and so fourth is justifiable for me.