I dont have quitting point or selling point for my bitcoins, I like to have them and I hope I will always have some. I sell when I need money, when I need to buy something, but I have my stash too. When price blow the sky I will still have some, I will sell some, but end game is that I will able to use my bitcoins one day for real, like I will go to and buy some nice car with 0.01 btc? Sounds nice, well maybe one day we will see bitcoin price so high that nice car will cost 0.01 btc and people can buy them directly with bitcoins.
I agree with this, and in my own opinion quitting or setting a certain limit is like stopping yourself to obtain better opportunities in the future. Whenever I heard some negative opinions and thought about Bitcoin I just look into its history, how it dump and eventually fluctuate in the most unexpected price which gives me optimism and hope for me to continue and strive hard for earning, I have lost my money before, and that is because of the wrong decisions that I have take. If you don't want to lose most of your money, then part an enough allocation of your money to Bitcoin which you will store into your wallet and recently I have discover
Darb which is an exchange that allows me to convert my assets into another useful assets that I used whenever I get a chance to engage in Bitcoin, and it also allows me to experience a faster way of making transactions.