I bought a VG+ SGC example back in my college days and it just sat in the safe collecting dust. I was more focused on drinking, going to strip clubs, wrestling events, movies, etc. I sold it after a few years for around 20k USD.
Could I get another one today if I sold a few big pieces? Sure. But do I want to do that? Nope! I just don't see any investment potential with this card anymore. Buying a PSA 1 for 30k USD makes zero sense to me! I think the 51' Bowman rookie is the better buy. Get a nice centered example and hold for long-term.