I understand I pay for overhead that is built into the price of any product I buy. What I do dislike is discounting prices and charging me for overhead directly. For instance, when I see VISA/MC/XX/XX on the door of a building, I *do not* expect to be charged to use that card.
Given that, you typically do not see this fees until you've committed to the business or purchase. For instance let's say retail store A charges $10 for a shirt you want, but retail store B has it on sale for $9.50 per an advertisement. Trying to maximize your dollar, you go to the retail store B. Upon trying to purchase the shirt, you found out there is a $1.00 fee to fold and put it in the bag; retail store A does not charge this. You would have been better to buy from retail store A. However, the opportunity cost to leave retail store B and go to retail store A is more than the $.50 price difference, thus you pay more. Had you had all the information for the total cost of ownership, you would have went to retail store A, but now you are out an extra $.50.
Trivial, right? But it happens frequently in business (see car dealerships). Advertise low, get you in, and add-on. How many times have you been asked about service plans lately? This is the exact reason why banks, by law, are forced to tell you the APR versus the rate. The APR is the total cost to finance with applicable fees (which is why the percentage it is higher than the rate).
Yes, $.50 no big deal until it is $1.00, $5.00, and everything becomes and add-on etc (yes, extreme, but who knows, tough economic times). :)
And I will still go to this place, albeit with cash. :)