The rack grade ones you speak of are not as bad as you make them out to be. Do you even own a CMP rack grade? I've had a CMP rack grade and they are only slightly worse than the Service grade ones. I currently have a Service grade CMP Garand and a SA match rifle. The biggest difference between the rack grade and service grade is the condition of the bore. The rack grade are not condemed bores or boat paddle stocks. The best bores are on the service grades (slight wear) and the special grades (new barrels). If a member wants a good one he can pick it out himself at either location. Some of the Service grades ($625) are now coming with new stocks.
You are also not quite correct on the requirements for CMP rifle ownership. NRA membership is NOT required. Competition shooting is NOT required. Try reading the actual requirements yourself. There are many paths to membership. I served in the armed forces. I simply fill out the form, have it notarized (only required every three years) and in about six weeks I get my rifle. It depends largely on the demand. They don't have a huge staff to deal with the hundreds of orders they get a week. Four rifles later I'm very pleased with their service. I currently have a 1903A3, Service grade Garand and a Mossberg 44US .22lr training rifle from them.
Visit their website and read the forums on what we really enjoy. Only the uninformed in the states pay twice the cost of a CMP Garand from a dealer or private sale.
http://www.odcmp.com/