I'm guessing most of those sales went through. There's been a resurgence in interest in lever guns of late. I think it's equal parts people being bored with yet another AR15 build, and fear of impending legislation. Also I think once people get their mitts on one, the figure out how handy they are. There's also been a resurgence of interest in the .45-70, particularly as a supressed cartridge. Part of that is due to to Wind River and whatever sequel to Jurassic Park featured the 1895, and part of it is because it's a really handy cartridge. Couple that with the general craziness around demand for guns in general, and I think folks are actually paying $1600 for Henry .45-70s. Last I checked, the new Ruger/Marlin 1895SBL rifles had multiple auctions well north of that price.
I think for essentially a brand new rifle, south of a $1K is a great deal. Every Henry I've put my mitts on has had great build quality, and they often have some really nice wood. A quick check of Ammoseek shows the very cheapest .45-70 ammo going for $2.30 a round.
I'm at a point in life where I'm trying to simplify the amount of stuff I own, and engaging in lots of #JOMO on the latest hotness. I don't have a burning desire to buy any new guns at the moment, but there are about a half-dozen things I'd consider once we move into a more stabilized market. A .45-70 levergun with a threaded muzzle is at the very top of that list.