I think it's good if you do your own research if you want to buy those cheaper altcoins as more alts are having hype and its a risk to invest without doing your research.
Very often the cheapest "penny" altcoins really give the best profits but not all of them. If you are not yet ready to risk, pick better Cardano, NEO, DASH, Monero, and Qtum.
There's a lot of altcoin that in a cheap price because of the huge drop in the past few months until now the market are not fully recovered yet. Yes is in the cheap price but not all of them are worth it or will giving to you profits, because a lot of them is a shitcoins. Make a research before invest.