What is the difference between a web host like Joyent and a basic hosting company like GoDaddy?

I’m trying to figure out which company to use for hosting the database that will be required for my small business. The business helps clients crunch certain information using a database (likely written in php).

I was referred to Joyent and it looks like a solid cloud host, but I’m also familiar with GoDaddy and they are much cheaper. Are they in the same ballpark in terms of what they can offer?

I haven’t tried Joyent but I’d stay away from godaddy.
Personally I have found IX to be the best of the lot.