Yep. No one answer fits all. ALWAYS a time to sell an asset. Picking the right time is not possible. $30,000 a NMA is getting up there. Saw $50K per NMA in west Howard pre 2019 over supply. If $75K would “change your life” then take it. If nothing would change materially by receipt of $75K, then your certain to get more than $0 and could exceed $75K.
Everyone has a number. We have a few hindered mineral acres. I’d likely sell for $30K an acre, take $10MM is cash, pay very little income tax since most have a basis step up, and start fishing every day. At $5K an acre, wouldn’t be enough for us specifically to change life in a way to walk away from the upside over time from holding the minerals (we have 21 permitted wells at present).
Final thought is this. What matters as much as anything is what you do with the money you receive. It takes assets to build wealth. You can take this asset, reinvest the returns (whether sales proceeds or monthly checks) in other assets (real estate/property valued stocks/your own small business, etc), be patient, and let the miracle of compound growth start to change your family tree.
Cheers.
T