beyond the cost of the actual purchase ($5 is pretty insignificant), card processors charge high fees per chargeback, and too many chargebacks (IIRC >1% of tran

beyond the cost of the actual purchase ($5 is pretty insignificant), card processors charge high fees per chargeback, and too many chargebacks (IIRC >1% of transactions) can get you kicked off and blacklisted from any reputable card processor for life