I guess most of the stuff I've backed I will never run - it's more to collect. That's OK. If it's a beautifully executed product, I'll add it proudly to the bookshelf. Sometimes I shouldn't have backed something, though, as I'm not really into the genre after all and have later sold the book. Or, the product received was disgracefully unpolished. Oddly enough, I've kept some of those books as you can cherry pick some bits and pieces but, overall, I wouldn't have done it had I have known. I guess it's also a learning experience. I now know to avoid those companies.
P.S. A friend of mine backed Dolmenwood. I haven't regretted not backing it yet...