I loved my manual 2500 cummins until it was time to replace it. It seemed it would pull a house of its foundation idling in first gear, and those lazy 35mpg rides (in a mega cab) were nice. Also loved my manual Nissan and Vette, a few others I've had.
But it seems that a manual transmission is one of those things that very few people want. So dealers are thinking of how long the truck is going to sit on the lot before it sells (mine was sitting on the new lot for six months). After several months of trying to get a reasonable dollar amount for it, I did find someone that wanted it on a trade and got a reasonable value. I purchase it thinking I'd keep it forever, but it was just way too big for its current use. The clutch was fine but I was a bit surprised what a simple clutch replacement cost was.