I stand by everything Jason has said. When Power+ became inflated with buy-in users, it lost its prestige. Instead of tightening the requirements to uphold its value, we introduced Supporters. While a subscription based upgrade is a cool idea, it never really went anywhere - the promised ongoing features were never implemented and it pretty much died out. So next came Investors, a group that promised profits from the site and more exclusive ongoing features. Not only does it look unattractive in every way, (hideous font and userbar) but barely any of the initial features that were promised ended up lasting, and it just became an extremely expensive buy-in.
We seriously need a revamp of the upgrade system, and I'm willing to help out with graphics if that's what is needed.