If the Airdrop doesn't require you any kind of investment more than just your time, is it probably always profitable unless it's a scam project.
usually every airdrop coin price is low and increases only at the beginning of airdrop in launching. airdrop increases if from develops pump to reach marketcap. that's why airdrop is given for free so that we as coin holders can increase their coin price through trading. especially at this time many airdrop, who steal data each participant in the name of airdrop. we must be wary of every participant in airdrop