Or how exactly you want a liquid economy in bitcoin?
Imagine if all the miners who mined bitcoin would have never sold them, then bitcoin would never exist, as the trading volume also determines the value of the coin.
And for each buy you need a sell, so sorry but your logic is flawed OP!
You are the one who is flawed. Bitcoin miners would pay their electricity with the Bitcoin they mined.
You are basically saying that if an economy were based on gold, then miners would never sell the gold and thus gold would never exists. Really ?
That said, there is a price were I would get rid of my Bitcoin, not necessary against fiat, but this depends on many factors.
The better question is : At which point do you feel sufficiently wealthy so you stop producing but start consuming your capital ?
On my part, I would say between 1 and 2 Million worth of USD. The problem is that I like programming on bitcoin so much, that after 1 month I doubt my life would be different from today.
Its ideal, but not realistic.
The reason is because the rate needs to be at a minimum high, and cant fall any lower then that # or else the bitcoin miner itself will eventually be in the red if the rates were to drop.
Rates that make a $100 difference will hurt you faster and you`ll have to figure out how to recover that for each time the rate goes down. Remind you still have to pay the exact amount each month for your electricity cost.