Totally agree with you. I know that bitcoin is an excellent long-term investment. But if you look at the possibility of earning money quickly, the altcoins certainly give us this opportunity. Of course, you're right that you need to have enough skills for daily trading, but it's worth it. All those who have been at the market for at least a year already know and have seen that when bitcoin grows, then on average it can gain about 5% of its anticipating price, while altcoins gain 20-30%. Therefore, for permanent earnings, the trade of altcoins is definitely more suitable.
Trading altcoins is very risky, if you think that trading bitcoin is hard you have seen nothing, altcoins can move at incredible speeds, I have seen coins growing 1000% in a single day and those that sold made a fortune overnight and then the price crashes and everyone that invested late losses all their money, so do not think of altcoins as just a way of making money, think of them also as high risk investments.