If you only offered one do you think you'd see a drop off in sales? If you have the volume, would you risk an A/B test to confirm the loss in sales versus the l

If you only offered one do you think you'd see a drop off in sales? If you have the volume, would you risk an A/B test to confirm the loss in sales versus the loss in fees? I'm guessing, from other comments, that many customers prefer PayPal when it's available.