If you think about the Honda Pilot vs Ridgeline, it has undergone a transformation similar to what the Tucson / SC would. Both the Pilot / Ridgeline have similar starting pricing (from my quick google search). The Tuscon starts at 21k so I would guess the SC would be about the same considering that the extending bed (which would probably increase costs) would not make it into production. Another factor is the diesel engine which could also increase costs...
I would think it would be worth it to pay 21k for a SC (minus diesel & bed extender) so long as the rest of it was similar to the Tuscon in build materials, quality, options, etc.
There would be savings involved in gas mileage over a mid-sized truck (more so for gas engine if optional), but residual value might be lower unless this turns into a huge cult car.
If somehow they manage to knock off a couple of grand, then sign me up!