Modern cards that the prices can't last on ?

[swarmee]

95% of modern cards are devalued within months of release due to the availability of them online. It's kind of fascinating watching the first Kris Bryant card from each set sell for $12-25 on COMC before the flood them come in and start getting priced at $3. At least last year, the Topps Tek reintroduction had some legs, but now most of those base cards can be found cheap. And the people spending $50 for low-printed, but non-numbered variations are probably kicking themselves.
1/1 cards, due to how many Topps prints out, are losing their steam as well. I think too many investors have lost their shirt on them and are now no longer willing to spend so much in order to have them the first go-around, expecting them to be re-listed regularly.