Nope. No reason as to why you dont see too many 2003 SS on sale online yet...outside of the fact that most dealers prolly haven't recieved their 2003 orders yet because the demand for them far exceeds the supply so far.
But, you can get 2003 SlingShot's, no problem, as long as you know where to go. I recognize that above 727 phone number. It's the same place I get my gear from. But they also have a toll free number as well....888-401-5080. The plaace is called Watersports West, and they are in Largo FL. They have 2003 SlingShot in stock ready to ship, just as Josh says....no waiting.