Many, many years ago, one Christmas in fact, Nigel and myself had gotten Debenhams vouchers for Christmas, amongst other things. So off to the Toy department we went. They were having a post-Christmas Hornby sale I remember. And having just got our joint Zero 1 based train sets all set up in the bedroom, it was a chance to expand stock 
I'd got the APT and Nigel a little shunter and some wagons. So he was eager to expand the passenger side of things. And it just so happened, going cheap was a new Hornby class 110 DMU. So, along with some wagons for me, we spent our vouchers and hurried off home.
At home you can imagine the disappointment when, upon removing the DMU from it's box, one of the wheels was missing. So we took it back, and as they were closing down the Hornby part of the department, they gave Nigel his money back. And that was that.
So, you can imagine the feeling, when searching eBay over the last week, seeing the price these things now fetch. Anything upwards of £86 it seems 
I don't know whether to point out or not, but a new wheel costs 50p...
