I do have thoughts along similar lines WJT.
Many of the airfields that were under both Eighth & Ninth AF control have memorials. They also had, in some cases, regular visits from Veterans over the years, with some Bomb Group's vets returning every two years. Those airmen of the Eighth and Ninth seemed to have formed a great affinity with their former airfields. In most cases they did not move airfields very often. It was not uncommon for ground personnel to have spent a long time at the base before moving to airfields on the continent, or returning to the USA.
I have a theory that it was this sense of belonging that caused local people to build on the interest for the returning veterans. Museums might well have sprung up to cater for the returning airmans need to see and identify artifacts from their past wartime life. These places have become instrumental in recording and preserving the history of the US Fighter and Bomb Groups of East Anglia.
But the RAF Squadrons and their ground elements seemed to have been permanently on the move, especially in Fighter command or the 2nd TAF. Nightfighter and Intruder squadrons in this neck of the woods rotated fairly often between Castle Camps, Bradwell, Hunsdon and West Malling. Even II(AC) Squadron at Sawbridgeworth were in and out of the airfield on a regular basis.
Now Bomber Command didnt seem to move about as much, But what I have found is again based on my own theory. RAF personnel I have spoken to dont really seem that enamoured with their old airfields, dont get me wrong though, they are immensely proud of their wartime career...just not with the airfields they were based at! Not many show a great need to revisit their old airfields, I found that out when contacting former airmen prior to the dedication of the two airfield memorials we built. When asked if they had ever been back not one said they had. Most did not even recognise any part of the airfields when they did visit!
Maybe, and again this is only a theory, this has rubbed off on the local aviation enthusiasts. Why go to the bother of providing a museum or visitors centre if no one returned to visit. The American veterans always seemed to arrive by the coachload thus provoking interest. If RAF personnel returned to visit their old airfield, it was more likely to have been on their own with their wives for ten minutes on a wet wednesday afternoon in November...with no one to see them.
Again it might be down to location, routes passing through the airfields of Lincolnshire are scattered. Unless you have reason to be there, the airfields remain largely remote, Maybe the byways of Norfolk and Suffolk are travelled more by greater numbers of visitors to the area on their way though to the towns of the East coast. Of all the Canadian Halifax Squadrons in Yorkshire , is there really only Elvington to remind former aircrew in the county of their deeds?
We would dearly have loved to have a visitors centre at Hunsdon, We wanted the old parachute store as a museum for the airfield but were turned down on rights of way & Health and Safety grounds by the landowners. Maybe this is a factor in the airfields of Lincolnshire and Yorkshire. but maybe, just maybe the deeds of the USAAF prove to be more 'sexy' to the public than the RAF. After all there is great interest in the 'Mighty Eighth' just as when you go to visit Normandy. In some cases the interest there seems to be more geared towards the American involvement, with the Canadian and British coming second, or am I just cynical?
Anyway food for thought though!