Its called limited for a reason!!!
If Oakley had everything on their website than nothing would be limited.  Its a way of them geting the best of the best riders on their team, having them show off the hotest shit in either a comp or a video.  Having kids who would jump off a building to get something that is rare brings up more publicity to the company and more publicity meens more $$$.  Oakley could give tanner and simon dildo onepiece to wear at xgames and make limited numbers of it and have kids kill just to get one.  Its a genius way of marketing and Oakley knows very well how to work it.  In my opinion Oakley is a sick company that many hate on because they are either "too cool" to buy something that "played", or like smith who think that oakley is too flashy but they are rivals and smith will allways hate on it.