NICE Daytonas!!!!! I like those cars also,and have owned a few. Hard to find them around here without RUST issues. I had a nice 86 CS, 2.2 turbo 5 speed. Also had a 93 IROC V-6 5 speed, that was a fun car with the v-6 torque and the 5 speed. The IROC 2.2 DOHC's are collectibles right now, but realibility issues scare me away from them.
Also have a soft spot for GLHS's...sold #609 a few years back (87 GLHS).
As far as collectibility?
? Your guess is as good as mine? If i could find a very clean V-6 5 speed IROC, I'd pick it up.