I agree, though I was trying to be careful to choose my wording in my prior post above, because I definitely did not want to knock modern stuff for those who enjoy it. Indeed I like for example Topps Heritage, and finding rarer variations of the few modern players I collect— even if those rarities are manufactured. The TPGs are manufacturing rarities as well, it's worth noting, with grades and pop reports.
That said, I would personally much prefer a rarity such as a Texas Tommy Shoeless or a Headin' Home Ruth over a Mike Trout colored refractor, but that is just me and to each his own. Despite the extremely high figure "sales" (alleged sales) of some modern cards, I do suspect because of the (earned) reputations of some of the key players in that world, that lots of those sales are manipulated or outright fake. (Not that players in the vintage space are all angels, by any stretch.) Just my opinion, but I put way more stock in sale of a card like these Texas Tommies, just due to the type of hypothetical buyer/collector of such pieces. Though I do buy some modern and collect a few modern players— and this is a generalization, borne mainly of the toxic cyber cesspool that is Blowout— I've found the modern market is rife with quick buck hucksters who are only interested in cards insofar as they can be flipped, then onto the next thing. I'm not seeing many collectors at all in that space, but rather people looking to buy and then sell for a profit. It's more akin to gambling really, from what I've gleaned. Maybe more of a cross between the rush of gambling and playing at being a mini Gordon Gekko, LOL. But again that's a generalization, as my own modern collecting does prove there are exceptions.
I love these kinds of Yahtzee finds, and I think going into any rare card be it a Cobb back red portrait or a Fred Foto Babe or a Texas Tommy Cobb or Shoeless, one has to manage expectations by assuming a few more could surface over the years. I don't think such additional examples would really dampen price let alone pleasure of ownership, as the demand will surely outstrip supply even if say 5 more of such cards suddenly came to light.