Direct Connection Big Block Valve Covers (Rare)?

They pop up for sale from time to time from NIB to used. I always liked them for the coolness factor. Me personally would leave those as they are and buy the newer ones to go orange.

I just recently acquired the MP Mopar ones off eBay (and I'm pretty that seller is an FBBO member lol) and I'm beginning to believe those are rarer than the DC ones.