I know this thread has been inactive for a while BUT....
I just found a couple of bottles of the Balvenie 21 at a store close to home that always had very high prices.
I was there for some beer but thought I would look at the scotch for the heck of it.
The Balvenie 21 Portwood was $108.00 per bottle.
I think the cheapest I had found this was about $179.00 at a discount store that is known for great prices.
I feel like I scored.