I believe that long term investment is a wise strategy and the best time to buy btc and alts should be in bear market where price value is low. Long term investment which took almost 2 years in the waiting is really a long time. I think that these people who had preferred on this strategy should have enough capital and willingly able to openly accept what for ever happens in the crypto market as the years passed by. Considering that cryptos will recover in the near future and people were able to buy btc and alts this time, rest assured that they may able to gain a very promising profit.