It's not about airdrop, the main reason price didn't go up due to huge supply of coin. You will notice same thing with Ripple & Cardano, even though they are good coin, lots of works put into, but price will not go up due to huge supply of coin.
The price will go up, just not by a whole lot. It doesn't matter though, for example, I bought Cardano at $.18. This allowed me to buy a lot of them. It's all about the % change, not the total value, because you can just buy more coins. I sold yesterday at $.30, so I almost doubled my money in less than a year. I still have high hopes for them though, just waiting for the coins to come down a little more, and I'll buy again, and probably double my money again in the next year.
If you have bought BTC a year ago you would 10x your money, not just 2x. I wonder when will everybody learn that no altcoin can grow in a long time (a year is a long time in crypto) as much as BTC. Never was and never will.