I will call those people traders, that bought car with their profit, and that is why their only investment is bitcoin. You don't expect me to have a bitcoin goal and after let me say 10yrs, I have reached my bitcoin target with so much endurance and patients, and I will then sell part of my bitcoin to buy a car that will depreciate in value as time goes on. Traders are the ones at urge to take profit and show off with their wealths and if you see them, that is what they will only be focused to because trading consumes time and needs 100% concentration to avoid loss but still they run at loss.

A long term investor needs other means of income and not even one so that he can reach his bitcoin goal and still be able to hodli his investment. For him to be able to be successful, he can use his bitcoin investment as what he uses to survive in life, this means that he will keep on selling and selling and selling until he has no more bitcoin, since he doesn't have any source of income. This was why I stated above that the person is a trader, because people like MicroStrategy have their investment running and they are diversifying some to bitcoin.

When you are investing it bitcoin doesn't mean that you have a complete guarantee that you must make profit and that the price will keep going up,  this why  you need a means of income can you are using to build your investment portfolio and  also to take care of your responsibilities because you need to survive, so that when the price of bitcoin goes very dip, you don't lose hope and sell all of it to survive, or when bitcoin turns to zero which has a slim chance of happening and you funds in bitcoin is gone, you can continue with your life and accept the loss. It is not advisable to only think one on direction for bitcoin price which is going up, even though the odd is high that the price might keep going up because it will make us make the wrong decisions that will lead to regret later in life.