Which should I invest into bitcoin or altcoin
Bitcoin is the best one to invest. It depends on your financial stability. You can start with altcoin , when earned much then invest them all to Bitcoin which is more profitable. Altcoin is helpful for anyone who wants to invest at low price. Profit is just good enough when selling them in good timing.
I think I invest in both Bitcoin and altcoin but investing in Altcoin is still a lot of choice and therefore investing in Bitcoin you can in the long run because BTC itself can promise then from now on if investing in Altcoin is better because there are many options and can tau altcoin which is good and can be profitable