What your $35.00 dollar Premium membership includes

Q: What if I own more than one forum, can I install the addons on all of them?
A: Yes.
Ooooooh. I see... I guess this is one of those benefits of having the subscription, eh!?

I was here only for the Ad below post plugin, so I thought $35 was a bit much (just a little bit), but then I discovered Similar Threads.