Hello all again!
After the fairly fruitful discussion on this thread, it did leave me with some food for thought. There is indeed a good selection of groups at Elstree, in fact probably out of proportion to its size. I've also had a useful PM from one of you re a motorglider (very interesting but quite far to drive to get to it), and have done some digging re cheap local PFA types (don't seem to be that many close to me).
However, I was wondering how to do it EVEN more cheaply (humour me here, after all this is aviation...

) so I have been taking a look at microlights, 3-axis and flexwing. The conudrum seems to be that they're cheap as chips to fly...but where they are in groups, the groups tend to consist of only 2 or 3 bods, which for most MLs still works out at quite a few grand each. So, we've got some 'proper' plane groups, for low or zero capital but with larger running costs, and 'little' plane groups for more substantial capital but cheap running costs.
Anyone know why this is the case? And, more importantly, if there are any ML groups with quite a few members in S.Herts?
Cheers!
BB