flyers, you are reading the sec filing but it takes a little critical thinking to understand it.
What you are not taking into consideration is a business concept called economies of scale. Cost of revenues is made up of fixed and variable costs both of which will not necessarily go up if sales go up. The fixed costs component includes things such as warehouse rent. Do you think they will buy an additional warehouse if they make another shipper?
Also if you notice the most recent numbers, three months ending December 2009, sales increased while the cost of revenues decreased. $20,707/$132,418 or basically 1/6th. If cryoport actually does significant volume this will be taken care of.