Mario the old bike pricing really is unpredictable in the market place eh, what sells for $3000 today might be flat out getting a $1500 bid tomorrow. It's all well and good to say I reckon my RM400 is worth $3500 but in saying that it could take a year before the right buyer spots it and decides to purchase. It may sell tomorrow but for vmx it's not the most desirable choice for the $. The vintage 80's are even worse simply because they are purchased on sentiment alone. There is no vintage 80cc class so there is no other driving factor except sentiment and wanting something you once owned or wished you'd owned as a kid. For me the mini attraction is twofold, I'm still the same size I was when I was 15 so technically I can still ride them without bending or breaking them
and secondly, they only take up half the space of real bikes so I can have twice as many
all in theory of course..if I were practicle I'd want nothing to do with old bikes period
I will get myself a watercooled/disc braked RM80 someday (any era) but after that enough is enough
I wish I'd never sold my YZ250G..I really do kick myself for that mistake