> I own 2048 IPv4’s myself and their value is ever increasing.

I own several /22's, and are renting them out through a broker. So far, 1 months rent (easily) covers the yearly RIR costs, so quite a good margin, and I still own them.

So when time comes, I can sell them, but before that, rent keeps coming in. Just need to make sure they are sold before the market value of an IPv4 crashes to zero.