I worked at Airdrop for quite some time. I still have several tokens in my wallet through Airdrop. The amount of tokens is not small at all. Not all tokens will be $ 20. I referred to these tokens as dead tokens. I don't think the price will go up in the future. Many like me have dead tokens in stock.
Airdrop couple of years back was in trend and everyone went for it and mostly many were dead coins itself which hardly or does not have value irrespective of qty we may hold. Just keep it and forget and if luck turns fortunes and someday if any of the coins rise back then consider as a jackpot.