there's an element of truth to this (freedom to use good tools, for example).
i've followed both models, but one of the best things you get from outside investors is forced accountability; it's a good kick in the ass to regularly take hard looks at your plan and have to meet deadlines and ship stuff.
if you're bootstrapping or part time, it's easy to kind of fart along and spend years on an idea that would have either succeeded or failed quickly if you had been forced to execute to a plan.
