While I was sorting some of the crap in my lockup today an old fella of 80-ish arrived to pickup some stuff from the next lockup. In the far corner I spotted a bike and asked him about it. He has a C reg (85/6) Honda VT500E which has not been ridden for 15 years but has been started regularly. One OAP owner from new, a tad under 16k miles, looks immaculate. I have never seen one before so I have no idea what it might be worth, they are rather scarce. He will never ride it again but cannot make up his mind, is it likely to appreciate as a classic if he keeps it or should he let it go ?. What is it worth and were they any good ?.