Maybe I should answer your original question, too. :-)

I make freebies and don't sell stuff, but I believe the principle is the same. I take as long as I think is necessary to make the thing to the best of my abilities, because I get pleasure from the process itself. I'm sure I'd be the same if I was a merchant - I wouldn't expect to sell enough to make a living at it.

(Tongue in cheek) One advantage of making freebies is that if the thing just won't work out perfectly, you can release something with flaws in it as long as people can work around them somehow. Of course, it's in your interests to declare those flaws up front. Nobody will complain if you warn them in advance that post-work might be required, for example. (Well, some might, but you can safely ignore them.) :)