Lol $50,000 is nothing if you were around in the era of ICO. Airdrops were so rewarding, even the ones that were of meaningless tokens. I remember getting an airdrop of some random token and even forgot about selling off the coins, the token value would then go up to around $4k.
So yes, just like we saw faucets die out, airdrops will also become completely meaningless and a waste of time in the near future. In fact, most of them are already useless.