It's VIP member extra when we moved over, although I kept all of the old ones in the import as it wouldn't have been fair to reset them. I'm going to be working on giving the VIP members a few more goodies next year - as well as adding a more visible link, as it's not easy to see where to upgrade at the moment.
I know it's not ideal having it as a VIP only option (mods have it too), but it's nice to be able to give people a little bonus for keeping the site running, as I try to keep ads to an absolute minimum.