What occurred to me was the idea that a youngster starting in trades (anywhere in the world) would be glad to have a copy of the handbook regardless of edition and would likely use it for many years. He or she may well not have the money to buy a copy. I was lucky to be able to obtain one when I started out, and still use that very copy nearly every day at work. A real shame to see one abused this way.
Can't help feeling that all these comments miss the more basic point: why would anyone think that turning any such object into a lamp was useful (or even sane) anyway?
You could have the same artistic effect, just place any old lamp on your copy of MH and when you need to look something up, merely removed the lamp! Honour upheld.