Will the value's drop?

[pokemontrader]

Yes.

Whenever cards are good in decks they are extremely valuable.
Once they are out of rotation they drop dramatically.

Here’s looking at Magnezone Prime for a “prime” example. Used to be $40, now you can find it just like any other prime cards for $2-3.

[fourthstartcg]

Secret rare energies will probably not drop, at least not the basics and DCE. These energies will always be in the format so they’re actually a pretty good bet to increase in the future. Just remember their value is tied to their playability so don’t PSA grade them or anything. Some of the other ones like Counter and Warp energy will most likely rotate so those aren’t good investment targets.

However most cards from the SM era like Lele and Gardevoir will drop like rocks once they’re rotated so definitely don’t invest in those.

[pieterpie]

@fourthstartcg

Secret rare energies will probably not drop, at least not the basics and DCE. These energies will always be in the format so they’re actually a pretty good bet to increase in the future. Just remember their value is tied to their playability so don’t PSA grade them or anything. Some of the other ones like Counter and Warp energy will most likely rotate so those aren’t good investment targets.

However most cards from the SM era like Lele and Gardevoir will drop like rocks once they’re rotated so definitely don’t invest in those.

Well times have changed a little bit, and rotation doesn’t make all cards drop to zero anymore, because of expanded format. So Lele could be playable for years, and without any kind of reprint, could definitely still be $25 + for regular art when it GR rotates to expanses.

And for energies, Future secret rare energies could hinder the value. I think COL energies could have been worth more right now, had SR energies not been printed. Overall though, wouldn’t expect them to really drop much.