Yah. The longer BTC is held, the better the profit would be. The price has increased now and it is going to go more. Many have already seen the profits and again bought more bitcoins and holding it looking for a price more hike. Too much investments now would pile up the wallets with good profits. Almost everyone is waiting for the moments to cherish.
i agree with you and you are right that longer bitcoin holding is very profitable and adoption of bitcoin increasing and bitcoin price is also increasing too much quickly day to day and people buying bitcoin and then hold it for high price and its way is very profitable .
but i think it depend on the number of bitcoin that how much bitcoin you are holding, if you are holding a good amount of bitcoin then it is ok you can get a good profit but if you are holding justa few number of bitcoin then you cannot make good profit even you hold it for a long time.