To play or not to play?

I used to play world of warcraft a while back and then my subscription expired. At my wife’s request I didn’t renew it because we were tight on money and couldn’t afford the little extra things. Our financials have stabilized again and i want to pick playing WoW back up. The wife, on the other hand, doesn’t want to spend the extra $12 a month. Should I just bite the bullet and respect my wife’s wishes or keep pushing for it?