I'm sure that it is market driven - if alot of old bike riders would spring for them, they'd make more. I think the number of folks who aren't willing to spend higher prices for tires on older machines has been growing, sadly. These bikes really ride well with modern tires, but I see many folks getting the cheapest Chen Shins, etc. they can - my skin is more precious to me than for me to put those on any of my bikes, IMHO. I'd give up drinking beer if necessary to raise the extra $$...