yes although Macallan is the most traded distillery and there existed ~3000 bottles, the M 2016 release never really took off at auctions. We registered only 9 trades, latest one coming from September 2019 for 3421 Euros. It seems like there are only few comparable bottlings so our WPM also gives out a current market value of around 3.500 Euros. It also has only one rating on Whiskybase and there are multiple online shops which have it on offer
(for much higher prices though). So no big audience and not particularly rare neither.
So I guess you will not be able to make decent profit anytime soon.