That's implausible. Using finger printing for fraud detection would only catch someone using different cards on the same machine. Once a card is deemed stolen it stops working so it's unnecessary for that scenario. That doesn't even go into fake fingerprinting some browsers/plugins.

The price is the highest the market will pay. Increasing that price means few customers lower revenue. Fraud is a cost to the business they must pay out of profits because if they tried to increase prices demand would drop.