When, like Dan, I used to fly military 4 jets as well as instructing on GA Puddlejumpers, I often noticed how differently I was treated by mil ATC when flying each type.
Being snapped at by some vinegar-bitch and told not to enter 'her' MATZ in a PA28 as it was 'very busy' with AEF and UAS flying was absurd - when I later flew an ILS there in a VC10, there was no such problem.....
The 5 mile MATZ is an anachronism. If Exeter and Humberside airports can survive without anything more than an ATZ, why on earth do places like Benson (which do NOT operate fast aircraft) need them?