I've said it before, and I'll say it again. I've hosted with about 10 of the top hosts here.
RealityCheck, Mojo, NationalNet, Jupiter, PhatServers, Cyberwurx, etc.
The first two in the list were very good. I find realitycheck exceptional.
The difference is, in my opinion, is that ISPrime are proactive. That is to say, they are actively involved in the creation and upkeep of your boxes. Every change made is made while keeping the goal of stability and flexibility in mind. I've not come across other hosts who actually will sit down and talk cluster structure, upscaling, etc with you. Most just throw an extra box online and let you sort out the details.
If you've never had more than 30 boxes with a host at one time, CDNd + load balanced with over 10 terrabytes of content, pushing an insane amount of data, then that's probably the reason you don't get their prices or their edge.
ISP aren't here to fuck around. You might be surprised who hosts with them
