This sounds like it would turn my hobbies into yet another job. I understand where it's coming from, but sometimes I like working on things that I don't have to finish.
Most of us are trying to create something of value that will allow us to get away from the corporate job frustrations.
In the end you might be working longer/harder than that frustrating job, but at least it will a) provide for you and your family b)something you are proud of c) enjoy while doing it
Oh, I can definitely sympathize with that position, having been in it myself, and I didn't mean to belittle the efforts of those currently trying to escape.
I was speaking as someone who is already doing a startup. I've made the mistake of trying to have "serious" side projects at the same time... it's not a good idea.