If a show was any good I'd be happy to drive an hour, maybe two, which could be anything up to 100 miles or so if it was straight down the motorway, during the summer I drive to several events at a similar distance or more. 100 motorway miles is only a couple of gallons of diesel which isn't too bad, especially if you're car sharing, it could be a lot more though if the route is less direct.
But the show has to be good, and to me that means more than just a bunch of trade stands which is not what I think of as a "show", it's just a big temporary shopping mall.
The ME Show is still held there - next one towards the end of January
It's not what it used to be though, the old Seymour Hall show used to be really good, with a mix of trade stands, clubs, and demos (RTP flying above the ground floor stalls by Harry Butler, boats in the adjoining swimming pool filling it with choking diesel fumes!). It wasn't too bad at the Wembley Conference Centre either, although the number of rooms was confusing and we always left with a nagging feeling that we'd missed a whole section!
For several years I did indoor demo flying at Ally Pally and Olympia, but that all went with the organisers need to make ever greater profits, free stands for non-profit making clubs and societies became a thing of the past and the big trade stands took over, and that's where I lost interest in the MEE, as did most other modellers I know.