IO540,
GPS approaches would be great and I agree that the CAA should wake up to the 21st century. BUT, some form of protection would be needed for IFR traffic going into Class G aerodromes on GPS approaches. Would you be happy to make approaches to such places with no traffic separation? Hence ATC. Fine. Who would pay for that? Is it reasonable to expect the VFRers to pay extra just so that the few of us who would use GPS approaches can have ATC? The reason places like Stapleford etc thrive is because they are "cheap".
The solution of course is to embrace technology - GPS, Gallileo, Mode S, TCAS etc and make it affordable. But that will require a quantum leap in thinking. Hey presto we would all be flying like airliners. How dull. Just look at how many commercial pilots enjoy the freedom of gliding.