Section 503(b)(9) of the Bankruptcy Code creates an administrative expense for “the value of any goods received by the debtor” within 20 days preceding bankruptcy. While there is little case law analyzing the appropriate measure of “value” under this section, courts that have addressed the question recognize that the purchase price reflected in the invoice or contract, pursuant to which the goods were delivered to the debtor, is prima facie evidence of value but that it can be rebutted by other evidence.