Not sure if Nippy attends the NEC, TT gave a discount at the LOndon show earlier this year for all orders placed there but that was the first time I'm aware of so no guarantees of them repeating it at the NEC.
Talking to a well known leathers maker about why he didn`t go to the show he told me about the VERY high prices they charge for exhibitors. You`d have to shift a hell of a lot of stuff just to break even never mind selling it cheap