+1 about wot he said about the overall hba1c usefulness.^
The home glucose meter used 2 hours before a meal can give the user a clue about his/her required carbo and meds intake. Testing 2 hours after the meal can give him/her a clue if it succeeded.
Type 2 varies more than type 1 in seriousness in that in some cases (and I know of a few) through diet and exercise the condition can be completely reversed to non diabetic which might explain why some may not require further doc visits and medication.
Like any user of any medication, there are those who will at some point get sick and tired on non stop daily pills and needles and occasionally just give up on them. I have done so myself. But to suggest that a test that benefits thousands should be cut back because a few don't use it is a bit stupid and short sighted. It's a bit like cutting back certain cancer drugs because of both cost and because those drugs don't work on everyone. Oh wait, that's been done already