If they actually put out content consistently, yes.
Shit I buy a 60$+ poe support pack 3-4 times a year because it "feels right"
And Diablo could 1-up poe in it's 1 weakness - that every great looking piece of gear is from the store for an absurd price.
But I wouldnt trust blizzard to hold up their end of the bargain, and people would fucking riot at the thought of paying a sub