for the years ended december 31 , 2007 , 2006 and 2005 , $ 0.5 million , $ 0.8 million and $ 1.4 million , respectively , of depreciation and amortization on assets under capital leases was included in depreciation and amortization expense . sponsorships and other marketing commitments within the normal course of business , the company enters into contractual commitments in order to promote the company 2019s brand and products