The Warley NEC show will have 90 layouts, 157 traders, 51 modelling societies, 12 preservation societies, 14 demonstrations and 26 other displays. That's a lot per £ compared to other exhibitions. Concessions stopped some years ago.
Large scale layouts for this year (when I checked in June)
Beamish Quarry - G Scale - Maurice Bramley
Rhydypenderyn - 16mm NG - Tony Bird
Coal Valley Mining - G Scale - G Scale Society NW
Waterfield Hall Estate Railway - 1/12th Scale - Allen Law and Jez Kirkwood
Stanley Midland - G1 MRA Midlands Group
Sud Harz Eisenbahn - G - Paul Steedman
Playmobil Christmas Collection - Walter Turner
And of course some large scale traders including GRS, Roundhouse, My loco sound, Gaugemaster and Accucraft