I know two very competent tradesmen, this is about bang on. They like big refurbishment, £10 to £20k isn't unusual, anything below £5 k just isn't worth bothering with. We all see things from our perspective but there are people out there spending a LOT of money on this kind of thing, money I couldn't conceive of. A house my wife used to housekeep years ago, really nice oldish house, easily £750k every time it gets a new owner, the builders turn up for weeks on end, skips appear something or the other gets a major refurb or redesign, almost certainly tens of thousands worth.
One of those two guys, I know his books were ramned with work a couple years ago, he picks and chooses which jobs he goes for and its so lucrative, he doesn't mind travelling to do it.
Not enough tradesmen, even though a natural element of them will be somewhat substandard, there's too much work, despite the recession there's people out there with very serious money to spend.