You wanna something REALLY sad, Last year I threw about 100 of these away. I used to be a Radioshack manager and we had our store remodeled last year and there was 3 boxes of these wedge in the corner of the old storage area with about an inch thick of dust on them, they had been in there for MANY MANY years. In the 5 years I was the manager of that store I never looked in that storage room, because it was never used for anything, there were also a crap load of old 5.25 floppy drives. If I remember correctly the UPC data code was from 1988, but I could be wrong. I know they fell off the deck (inventory) in 1991.