@ robbie21 - I think that yes, it is a cancer screening. But instead of trying to explain your lifestyle to your doctor, you might do what I did and argue based on ACOG's (the major group of OB-GYN) recommendations.
My doctor was also wanting me to have annual Paps. But the current recommendation is every two years from age 21 to age 30. Once you turn 30, if you have had three at least three regular tests with no abnormal Pap smear, you can have the test just once every three years.
Hope that helps. Don't let them make you have tests you don't need!