I would expect the first CD-ROM drives to be
collectable, early MO drives,
I can imagine an eBay listing already:
L@@K! KEWL RARE original Apple CD-SC drive, only $1000 (as-is)!
And some working Philips CM-100 top-loading drives. I think the CM-100 was
the first CD-ROM drive to hit the market. Maybe I can get $2000 each for
those.
Let's see, that'll get me about $25K. ;-)