I had to go to 3 stores to find one.
At the first 2 they looked at me like I was crazy and had never heard of anything like it. They said that there are different regional inventories around the country. But, when I walked around, each store had a similar set (the new one) for $50-ish.
I had given up, but a client called me in my car to delay a meeting by 20 minutes this afternoon, and I knew of another Radio Shack a couple of miles away, so I swung by. The 2 guys working there were far too cool to help me, but then a jolly young girl came out and walked me directly back to the one remaining set.
At less than a quarter per piece, I am sure that it will prove worthwhile. There are several items in there that I didn't have.