Let's see that Foes! Those were wild lookin' frames...I doubt that Kona will ever be worth much. It wasnt that great when it was new. It didnt have anything exceptional about it. No new technology or anything.
Where you are seeing prices starting to skyrocket is on old components. Around 1994/1995 there was a movement to create a 100% American made mountain bike.
This is when we started seeing American made derraillers (paul, proshift, precision billet). These old derrailleurs can fetch an easy $300/each.
Old V Brakes - Avid Ultimates, for example. Stuff from Grafton.
If you find old bikes with this stuff - buy it.
As soon as Shimano started producing XTR this cottage industry of American-made bike jewelry died.
I bought two bikes last year - each for $300 - and I made over $2,000 parting them out - and kept one of the frames - a 1994 Foes LTS. Keeping it as garage art.
Someone hasn’t been tracking early BMX prices lately!Someone a long time ago said (I paraphrase) "A fool and his money are soon parted".
Betting on future value of bicycles seems very risky to me, especially mass produced bicycles.
They weren't all ridden hard. I had this time capsule bike I was saving but sold it a few years ago. https://thecabe.com/forum/threads/2002-rocky-mountain-rm7-dh-time-capsule-bike.111461/Vintage dh is a tough market. Bits and pieces will be more available for hoarding if that's what you plan on doing. Marzocchi super T', shivers, monster t' boxer forks etc. Cranks and hubs/wheels. Really not dissimilar from the bmx market.
Late 90's Early 2k DH &Freeride was a pretty small scene. Mostly West coast and western Canada. And those bikes got ridden hard. The unfortunate thing is old dh bikes ride like poo just about anywhere, the trails changed and they aren't the best for the high speed tracks of today. All the freeride rock rolls, skinnies and huck to flats are all gone