well, I'm not too much when holding bitcoin. I always hold bitcoin under 1 bitcoin for a long period of time, whereas when I have more than 1 bitcoin, maybe I'll sell it in the near future. well, sometimes there are so many things that need to be bought.
It's probably a good idea to try to hold as much bitcoin as possible from now on because it's very likely that in the next years or the next decade the price of bitcoin is going to go up so rapidly that just by having a small amount of it you could make your life a lot easier.
Buying and holding bitcoin depends upon your investment. If you have more money you will buy more and with less money you will buy less. It is simple. There is no problem in it. The problem is holding for long time and earning profit against your coins. If you earn lot of money, you will be happy and will invest more money in bitcoin and your holding will increase.