I don't think this is unique to just LF, though I agree it's the one format where it's clear as day film still surpasses digital.
Is this based on direct experience or via third parties through reviews, blog posts and other internet born proclamations?
Because in my direct professional experience, images from digital cameras at around 50MP with good glass like Zeiss or quality tilt-shift types printed at 30x40” are pulling away from a good print from 4x5, at least in color.
My sole reason for shooting film in 35mm, 120 and 4x5 is the hand made black and white print, it’s well worth the effort.
As far as the price of gear creeping up, I keep track of it for insured replacement value reasons and the really good stuff like Apo Sironar S lenses is indeed creeping up. Hasselblad lenses seem to fluctuate by as much as -10 to +10 percent.
Top quality / modern darkroom equipment has become more scarce and the prices reflect that.
For example my first Saunders LPL 4550 XLG VCCE was $450 at an estate sale in 2013, it was in mint shape and came with four carriers and lens cones.
My second one was $950 in 2015 via a camera dealer in California, still in mint shape and about the same accesories as the above.
But my third one was a whopping $2,200 last week. Now it is literally brand new with the impossible to find stabilized power supply ($600 new ) but man, that hurt!
As for large format camera used prices, they are still dirt cheap so I bought both my Chamonix 45N2 and Gibellini ACN45 brand new.