Sure everyone as the right to used there money the way the like, you can't stop that. People invested in bitcoin because of making profit not to continue holding without benefiting from the investment. Anyone have is on choice on what to used there profit for, some invest in Katherine assets and some used the money for luxuries things. Everyone have the freedom to spend anything they have because is there property and you can't control that. Bitcoin is not a small investment and when you achieve your goals definitely you need to make your self happy to buy things that will make you feel good.
Ultimately, that's the way it is. Everyone has their own goals and objectives for investing in Bitcoin because they want to profit from their investment. Profiting from Bitcoin's rise is natural; both short-term and long-term investments are ultimately about profit.
Some traders don't have much money and can invest long-term, so they sell, but others also take advantage of every price drop and then buy back. I myself sometimes, when I've made a profit, sell some and save the rest so I can buy at a lower price. I also sometimes buy basic necessities to enjoy life. The mistake is selling Bitcoin after making a profit and then saving it in the bank or buying altcoins.