I think you should research first to be able to determine the value proposition of the coin that you are holding or that you got as airdrop. Then you can make your decision
In my experience, I am holding low valued tokens since last year and I am still holding them but this year, I am amazed because they're the one's that offers me huge value of money. If I am going to convert them all to my local money currency then I am a quick millionaire through Cryptocurrency and Signature bounty campaigns.
This is the best thing happened in my life and I never regret spending half a year of time and efforts just to earn tokens for money.