My take on the deal, is this: (and I've got several that fit both categories BTW)
If I've got a bike that is pretty much all there and could be restored (or close to it), I'll go for
it. If I can't afford to restore it, I might consider putting it up for sale. Of course you can't
control what the buyer might do to it though. So, what do ya do?
If you've got a bike that's pretty ragged and would be pretty costly to restore, then you
could either build a custom or cafe it. Plus there are some who take off stock parts, put them
aside and build the bike w/ the capability of putting it back stock, if they wanted to.
You see, I've got 3 74' 450 bikes (2-CBs & 1-CL) 1-CB isn't really what I'd call resto material,
while the other CB and the CL are pretty close and I'll try to bring them close to it.
I've also got a 73' CB500K that is pretty close to reso material in my opinion and I'm gonna
try to do it.
Later on, Bill