It was unlikely to drop below MSRP and then $20 according to this site.
This is strictly a shelf collection thing for me. I already own the original SNES cart and Collection of Mana. A mediocre remake only has a mild appeal for me.
Don't forget the Secret of Mana Collection is supposed to come to PS4 this year. Hopefully there will be improvements over the Switch versions. Trials of Mana (which they made 1 player stupidly) is also coming this year.