for me low cap coins are very risky to buy, because we know that popular exchanges like FTX, Binance and Bitfinex never list low cap coins,
but I agree if we collect Medium Cap coins, there are lots of choices, we can look for them on coinmarketcap,
the meaning of medium cap is where altcoins are in rank 200-500 in my opinion
yes I think it's like gambling, because we just hope he will be big, but that's not wrong on the condition that we have to pay attention and research the coin