For those who still hold altcoin and trade in altcoin will be regretted it, like me in this bull run market exactly for previous year until now I always choose altcoin as a trading place. It is just give me a low return than if I trade in bitcoin.

Yeah, as you can see in this situation the market movement just give a good return for bitcoin. If bitcoin soared there is no altcoin which will follow it, just bitcoin that has a good increase, no altcoin. But when bitcoin down, altcoin fall sharply. This thing will distrub our psychology, because when a temporary bull run comes you will feel afraid to buy because bitcoin prices tend to stagnate.