[metamemetics]

Maybe he has a lot of pre-existing repeat-clients who always come to him for their tech stuff that he doesn't want to send away permanently.

[thaumaturgy]

Yes, exactly. And, both the consulting and the startup stuff are part of the same business, just different aspects of it.

I know it depends on the individual, but I find it a lot easier to concentrate on startup work when I'm not developing an ulcer over finances. (And I can't wait to stop developing ulcers over finances. ;-)