I want VPSs for webhosting. A nice, solid, reliable platform where I can put 10 or 20 or 30 sites. Like most websites they don't use much bandwidth. And like well-configured sites they don't use a lot of CPU or disk I/0.
I don't really want a VPS where my node neighbours are running torrents, or VPNing movies, or file-sharing, or encoding video, or... whatever. I have nothing against those things, but it's sometimes disruptive for me. Instead, I'd like to have like-minded neighbours :)
So why don't providers start to specialize?