Obvisouly for the free tokens, but other than that, what else incentivise you taking the time to do the airdrops? Most of the time, I found that the airdrops often give little to no return. I just started to get into the crypto thingy. I feel like it is better off finding those ICO projects and considering investing in rather than chasing like 5 dollars?
For some crypto of course. It is the easiest way to earn some. This is only asking to do easy tasks, which I think fair to the price. When the token from the airdrop became listed, they'll have some value. Then, we can trade it. Easy. Though this is low-earning style, this is a good practice if you want to go trading. You can use those tokens to do riskless trading.