The point is that I get still acquire new technical skills and parts of (failed) projects might be challenging and interesting, even though complete project don't result in success (in business meaning). For other points see my response to a sibling comment.
Fair enough. I guess it also depends on how far the projects actually get before they get canned. I assume part of my problem is that I was always working on my projects alone or nearly alone (from a technical contributor perspective), so customer feedback was the only way I was going to get any input on the code I'd produced.
The point is that I get still acquire new technical skills and parts of (failed) projects might be challenging and interesting, even though complete project don't result in success (in business meaning). For other points see my response to a sibling comment.