Well honestly this site provides alot of the things I would already expect to have to pay for but here is a small list of things.
No Ads (yes I know it was stated already there wouldnt be
)
This may be stretching things a bit but a possible discounted premium price for addon authors.
I also like the idea of an all in one downloader for various addons to be all downloaded at once.
A subdomain email would be nice like what was suggested by a previous poster.
Possible discounts for various WoW related merchandise such as stuff from Blizzard or Jinx etc.
A couple of questions also, would the premium membership from WoWI be spread across the rest of the network as well? (i.e. EQinterface, LOTROInterface etc.) Curious since the current membership for this site is not spread across the various domains for *Interface.
Also since Dolby is a fellow cheesehead can he be forced to buy other Wisconsin premium members Packer's tickets for the upcoming season?