If buying silver with a credit card, be sure to check price differences. Some bullion dealers are competitive for cash purchases, but may be less flexible for credit card purchases. One dealer may be your best option for cash, while another dealer may provide the better deal for credit card buys. Note also that cash purchases do not always yield the lowest price if you choose to wire funds, rather than sending a personal check. Often, wire fees at the bank may be greater than the premium you would pay for using your credit card. This is more likely to be the case on low volume purchases, where your cost will always be greater.