I don't think that we can justify a production point boost based on the market value of cards. I say this as an individual that has quite a few excess summoners. They're cards. No different from others. Land is meant to hoover up those cards with less utility.
I think this proposal would have the opposite effect, and have a negative impact on new players who want summoners to ... you know, play the game, and something like this would just increase the barriers to entry.
My vote will likely be a no, I am glad you seem to have the same opinion.
Agreed. Im a big no on this.