Thanks for the feedback! I'm a huge, huge fan of Grasshoper. I have a quick question for you. We can make the service cheap, but credit card transaction fees

Thanks for the feedback! I'm a huge, huge fan of Grasshoper. I have a quick question for you. We can make the service cheap, but credit card transaction fees get expensive. If it were available, would you be willing to pre-charge your account with $5 or $10? What would be your ideal cost for faxing?