Around here, the Pappy 15yo sells out fastest (at around $65). If memory serves, 20yo Pappy goes for about $110. Personally, I buy 10yo Rip Van Winkle (when I can get it), which goes for around $35. I also prefer the 90-proof to the 107, and still almost always dilute it with a splash of spring water.

I've seen 23yo Pappy priced at about $200 in Louisville, but over the river in Indiana, it's usually around $300. I've never been willing to pay that much for a bottle, especially when I'm VERY satisfied with my RVW. Mom got a bottle of 23yo Pappy from my brother for Christmas, but she hasn't opened it yet (and I don't know if she ever will).