Whilst i agree ive been lucky to happen across such a deal, the spec given by Orange went into minute detail as to what items had been changed and what had been substituted in its place.
I firmly doubt Orange would have sent me the bike if i sent them £40 less than the asking price, so it seems that we are both part of contract.
The arrival of a bike that I couldnt ride due to the missing parts was also a little frustrating on a rare free weekend.
I can only assume that keeping your word, or the pressures of dwindling free time are concepts that are alien to you.