You mean easy to buy, difficult to get shot of...
funnily enough Rex, that's exactly what I had in mind initially but then in deference to Brian's sensibilities I modified my take on the situation slightly 
I've found that it's a bit too easy to dispose of things that aren't actually for sale!
At one point I had a dozen, all running pretty well but in various cosmetic conditions / states of originality. None was horrible though. Herself thought they were breeding in the shed.
I'm down to half that now - without ever having had anything 'For Sale'. People show up for normal non-bike-hunting reasons, chat about all sorts, one thing leads to another . . . and ouf! there's a hole in the shed.
So
"they came by magic and they disappeared by mistake did they?" is Herself's view on things.
I was happy other people were made happy with things I could manage without, and I was happy to have just about maybe broken even overall, with a couple of probably undeserved wins. (They asked, they offered, wasn't me trying it on Guv.)
Like Brian, I had a tendency to buy cheap and not running, sort them mechanically at least, enjoy them, and go from there. And gone from here some of them have.
I know if I wanted to sell something like a normal person I'd be expected to haggle and I'd get grumpy, so I hope the rest can be re-housed when Time Runs Out on a similar basis or in the family. It helps to know quite a lot of people and be in a few clubs I guess - best keep in with them then! Anything left over =
Kids' Problem