You definitely need to switch vets if you feel he is ripping you off and there are some sleazy vets out there. If you find a good vet it is worth the drive. You will save the money from those unnecessary tests.
A dog has so many friends because they wag their tails not their tongues.
R.I.P. Buddy 2002-2008 The best Mastiff ever.
Now owned by Clark the Crazy American Bulldog