If you're still looking for the twenty year old and REALLY want to splurge, Cork n' Bottle in Covington, KY (who originally brought Hirsch to market) are selling a set of five A.H. Hirsch bottles, a 15, 16,18,19, and 20 for $5,000. Like I said, a huge splurge!
I had been a Scotch drinker until a vacation visit to Covington, KY in 1984. They told me to try Blanton's. I was hooked! Next visit to Covington, they suggested the Hirsch. WOW!
Eventually, I ended up with a case of 16 and a case of 20 and some singles of 18. I vaguely remember the 20 was under $40. I've tried a lot of whisky and Hirsch is still my favorite, (I've got 2 1/2 20s left and 3 1/2 16s), but don't think I'd pay $1200. for a bottle. That would buy a lot of Blantons and Four Roses. On the other hand I would never sell them. (They do come out on special occasions)
I have friends who are serious wine collectors and they drop that kind of money often. And the bottles they buy are gone in one sitting. I guess it's all relative.