Hi sw33tp34
Basically the UPS qualifier is if you have an order with a value of $150 or more, or your shipping address is outside of the United States. All orders that are to be shipped within the United States and have a value of less than $150 will go via USPS Priority Mail.
Is there a reason why you ask? Would you prefer your order to be shipped via UPS than USPS? We are happy enough to accomodate in any way we can so please feel free to specify what you would prefer when placing your order.
Thanks
Alex