My own personal view is just this. I don't offer a BIN and I get loads of questions about do I have a BIN, would I end the auction if no BIN is available. Then when I have BIN, I rarely see it being used.
I think the thrill of an auction for my items at least, do much better. I also start my auctions at a low price, usually no reserve. I have only been severely screwed a few times. The times that I wasn't screwed seemed to have made up for that huge loss.