What % of graded games will end up in landfill this century? What are you doing (other than encasing them) to prevent this?

Due to the ballooning value of these games, nevermind the graded ones, sales become less likely, and "deathbed collections" more likely.

There is also an increasing likelihood that retro gamers will never have children. That means surviving spouses or close family need to be willing to store these graded games indefinitely, or be very lowballed.

There is also the possibility of these acrylic cases ending up in landfill, especially if there is an abundance of graded games listed online and hardly any demand, even at "bargain" prices.

So what are the instructions for family or spouses who will inherit them? Or will you make sure to sell them, priced to sell, at the right moment?