I bought a 1992 R100RS from a collector. It had been unused for 18 years. I changed out all the seals and rubber bits and I am riding the hell out of it. That is what they are for. Every now and then one gets squirreled away and not used and maybe it is neat that a few of these exist. Better that I don't own it, because it would get ridden or sold.
That is like having a girlfriend who is too pretty to... Oh, never mind.