Olds going away will have no effect on value. Cars can be a fun investment, but if you're looking to only make money, look elsewhere. If you want a cool car that won't depreciate then a collector car is a good idea.
Cars that I think will go up the most: GNX, Omni GLH-S, 1980's Caddys. Also, icons like first gen Camaros, Mustangs and 55-57 Bel Airs.
Submitted for the approval of the Midnight Society