Hope I don't ruin your day but yes I did. It was in Ann Arbor.
Don't know if you have heard of it, but I use www.searchtempest.com to make browsing CL tolerable. You can search multiple cities at once based on distance and get all the results quickly. While that's a great tool, the real trick is what keywords you use to search (figuring how the average person might describe it). It won't be "Ikea Bertby" 99.9% of the time, that's for sure ;)
I search Ann Arbor and Detroit CL's every day using terms like "display case" and "ikea display" and others. What did you use to find this one?
It was either "Ikea wall" or "Ikea dvd". Those are the only 2 phrases I've used to find all 6 of mine. People either call them a "wall (unit/shelf/cabinet/etc.)" or simply a "DVD (unit/shelf/cabinet/etc.)"