They are actually more of an exception to the rule. It's certainly possible to have a good software business that is self-service through and through, but very

They are actually more of an exception to the rule. It's certainly possible to have a good software business that is self-service through and through, but very few large (as in multi-billion $$) software companies actually are this way. Even the companies you might think of as good examples will still often have a sales operation to go and get the big contracts.