Some people think they are very smart and will buy soon after btc peaks and real alt season starts but to be honest btc peak is not easy to find and most peopel will lose taking this risky strategy. The best time to buy is from longterm support areas during downtrend.
You cannot complain because if you look at the charts or if you are active in the market during the last rallies then you would understand the reason why he invested in alt coin when the price of bitcoin reached its all time high valuation, usually after the bitcoin rally the alt season starts gaining momentum.
I stopped riding the market like that because of certain experience and i am not planning to take any risk this year because of my financial situation.