Thanks for the answers everyone. JosephD. I agree that it doesn't look that way because of the size (19GB on DL vs. 38GB on Discs) but others have commented that it "comes with all the Jam Packs" so I'm hoping it may be just a compression thing....
At any rate it will soon be a moot point as the $499 version is getting hard to find and even harder to justify for my application. I sure hate to miss out on all those extra sounds, though, as it seems vst plug ins and 3rd party software just seem to add to the complexity and potential instability of things....
Does anyone know for sure? Is there anyone at Apple monitoring this board that can just tell me straight up? Or anyone that for some reason has the one version and kows someone else that has the other?
Thanks again for all the replies!