Re Salesforce: we were evaluating them, and I discovered you have to pay extra if you want non-company customers. I realized it wasn't a ploy for extra money, they just hadn't used the Party model, and thus had to do extra work to have individual and company customers. We didn't go with them.
I have a feeling the best technical talent still goes to big blue for the "impress mom" rep and R&D, or NSA for the spook factor