In the same situation, would you have sold a property? It’s a simple enough deduction.
When asset prices accelerate suddenly, and you can’t see clear to the horizon that the new fertile world is real, then it’s time to think of dumping what you have.
I’d love to be in possession of the Ferrari Dino I oh-so-nearly robbed, lied and stole to get 20 years ago (in the end, I didn’t!) - but if I had it now, I would dump it like a poop-lolly. The values have rocketed, and the only possible thing holding them up is money-laundering and tax evasion (we found this out in the Panama Papers farrago) - and those people will move on quickl enough to something else.
The basic thing is - when values shoot up, think of getting out, because it’s unsustainable. Always.