Don't see it that way. These aren't that rare. And the quality has been pretty bad. So you think you're gonna sell em for 5 plus in a few years? That is delusional. Corks yes, these, nope.
These have little "Collection" value in my opinion and I've been in the game since I bought a pair of J Vs off the shelf in highschool. The retros, and resellers have devalued the game entirely.
I can go on ebay and cope DS 1st Games for 400. GR 7s and 8s for stacks, guess we don't see the game the same way. Only the VERY RARE are making money. If you're talking Fruity Peb 4s, All Star 7s, Solar Red V2 lows or Big Apple 6s, there is money, but these won't hold much value.
AND YES, THIS IS MY OPINION.