A couple of things that come to mind that are "great finds" from a couple of different perspectives:
1. Just this past weekend, I picked up a really-hard-to-find MTH Hurricane Katrina Kennywood car for a lot less than people usually ask for the regular Kennywood (park exclusive) rolling stock. I had only ever seen pictures of it, and have never seen it on eBay, and I certainly never thought I would own one.
2. About 10 years ago or so, around the time I first started selling at York, I was looking for Weaver custom run Apache Powder outside braced boxcars. I had one of the three road numbers that were made, but a few years of searching only turned up the one I already had. I was sitting at my tables during a slow time with not much to do (my brother was out wandering around), so I started looking around at tables close to mine. After a bit, I sat back down, and as I did, I noticed a handful of Weaver boxes above standing eye level on top of a pile of boxes on the table directly across from me. Sure enough, two of them were the exact two Apache Powder cars I was looking for, and at a great price even before the "friendly neighbor" discount.
Andy