The reason I am holding or at least not selling (most of my btc is in alt's atm) is because we have not reach BTC's potential. There is so much to come and thus selling your crypto is the same as robbing yourself. Simply because you lose out of much profit and innovation.
You are right it is very good to hold the bitcoin because now the bitcoin value and the price is increasing I hope the bitcoin will get the high price and all the people will support the bitcoin I hope in the future the bitcoin will have the valuable price and the income for the people. Always the bitcoin price and the popularity keep on increasing and this is the best thing that the bitcoin will be the best currency at the end.