In my opinion, you should try to invest with Ripple.
At present Ripple, prices are still under $ 1 but I am sure that in the future Ripple will become an expensive coin and become a good coin.
Currently, there are many Ripple coin enthusiasts because the Ripple Technology is very good and the transfer speed is very fast.
This is a good moment, then buy Ripple right now.
Can you explain how to do it by buying for 1$? If he buys 2 ripple, he will not even have enough money for transaction fees. I don't know if any exchange allows transactions for 1$. The attempt to invest such a small amount and expect any profit is completely pointless.
Base on the guy message. I believe he was actually talking about the best altcoin to invested in which is also below $1 price mentioned by the OP with the exclusion of the tx fee.
Nurbay, ripple have great technology which also impress some banks but ripple coin don't have the utility to pump cause the coin is centralized cryptocurrency.