For holding bitcoin is not greedy, for me, it is a smart strategy because I believe in bitcoin it can increase the value after years. If we invest in for a long period of years, their big chance to double or triple your profit. I believe in saying that Hell has three gates Lust, Anger, and Greed.
As it is expecting that bitcoin price will continue increasing therefore i think holding bitcoin is not to be consider as greedy, but i also think that it is a wise decision. I think holding bitcoin in current time will be more profitable in near future because the bitcoin price will continue increasing for a long long time.