the great LONDON HI-FI SHOWS from the early 70's in places like OLYMPIA, EARL'S COURT and various holyday inns all over london, were a superve experience, i will not comment on northern or south west shows, as time went on to have the great heathrow show mags took control of running those shows in advantage to their financial purpose ,various mags jump in as well as manufacturers who eventually stopped giving a toss about joe public, distributors abroad were more important then uk dealers or uk customers, the great london heathrow show died years ago in ramada etc with hi-fi news .