Don't feel too bad. A lot of times, even if there is a bidding war for a chip, the next one that shows up won't get any love as people have moved on, and spent their budget on something else, especially in this price range. If you can, keep it off the market for a couple of weeks then post again. I'm sure all of us eBayers have stories of something not selling until the 3rd or 4th time it was posted.