i think single model are ok as long as you pick a decent place to go
i go to a Thames Valley mk5 meet where we have a meal and we get 10-20 most months as its more about the banter than the cars, that said getting 20 scirocco owners to a meet was like pulling teeth
best rocco meet i went to was at gaydon as there is something to do there and in reality i fancy a meet at the donnington collection
i don't do many shows as hate parking in a field with BVF being my next appearance as they need so water cooled content for the VWOCGB display