There is a lot if you are into canoeing and or mountain biking.Quite a few tents outside too. There are one or two interesting stalls but not enough for me to justify driving for two and a half hours and paying £6 to park the car.
More and more "expensive holiday" companies are moving in too.
I won't be back again.
That was exactly how I found it. I didn't go last year, but was there the year before that and was really unimpressed. Too many luxury holiday companies, too few stands selling gear. Any gear! I went wanting to look at water filters, head torches and wool base layers and found one example of each in the entire show.
Honestly, I have found a lot more stuff of interest to bushcrafters at the Kelmarsh Countryman Fair.
http://www.countrymanfairs.co.uk/gamekeeper/gamekeeper_home.html
From London it is closer than the NEC, there are more stands selling bushcraft type kit (Country Covers / Arktis is usually there for instance), there are generally several knife makers/sellers and a lot of craftsmen. Sure, no canoes and bright anoraks, but worth bearing in mind.