Not sure price is the only criteria re arsenic in wine - I think you are referring to the California law suit from early 2015.. Arsenic in ground water is the issue. The amount of arsenic in ground water is mostly a feature related to the underlying geology make up. The arsenic finds it's why into a crop thru the ground water absorbtion. Red wine is more of an issue due to skin contact during fermentation - the arsenic is more likely to be found in the skin, than the pulp or juice. Note some "big chards use an amount of skin contact pre fermentation to bring out more flavour. If you have conerns about arsenic, I would be equally or more worried about apple juice and rice products such as organic brown rice syrup found in lots of products from baby food to protein bars.
Personnaly I would be more worried about copper and ethanol in food products.
However I will agree that life is too short to be drinking poor wine
J&B