Haven't sprung for the ME Super just yet. I've got a couple of Program Pluses, a Super Program, Spotmatic SPII, and a Spotmatic ES-II.
The ES-II and a Program Plus came to me for the grand sum of $20. Seller stated he put in new batteries and camera's still wouldn't work. Got 'em home, downloaded the manuals, and correctly re-inserted the batteries. Both work like a charm. Love the Pentax SMC Takumar 55 f1.8, and the SMC Takumar 50 f1.7; excellent lenses!
Waiting on snail mail for a NIB Motor Drive A for the Super Programs - Grand total $25 for that one.