I was just looking at the guide and noticed that some of the 32X games seem to be a little on the low end in terms of value and rarity.
For example, Brutal: Above the Claw is in the guide as R3 and worth $15. It's at least as rare as Putfall and Primal Rage.
After Burner and Space Harrier is in the guide as R1 and $3, while Toughman Contest is listed as R3. I see a lot more copies of Toughman Contest in the wild than I do After Burner and Space Harrier. Also, those Sega arcade titles command at least $10 or $15 a pop. More on eBay.
Finally, Primal Rage goes for as much, if not more than DarXide, but it's listed at $15.
I am just saying that maybe the 32X section needs to be re-evaluated.