King Electronics, a retailer of video equipment, sold two VCR's to Larson, a psychologist, for her personal use in her home. The sale to Larson was made on credit. King retained a security interest in the VCR's sold but did not file a financing statement. Mills, A creditor of Larson, subsequently filed an attachment on the VCR's. Mills has asserted that his lien on the two VCR's is superior to King's security interest because King failed to perfect his security interest. Decide.