Stern is working on a better system now - obviously because of competition - but their last SAM system was uninspired, meant merely to take everything they had, and duplicate it using more modern technology (since the old parts were getting difficult to source). The only actual benefits SAM really has over Whitestar is USB updating and slightly increased storage (but still pitifully low compared to what it should have been at the time). And the only changes visible to players are slightly clearer audio (still rather poor due to storage space issues), and a few more monochrome shades (16, but I think Keith said only 10 were actually usable).
Heck... if you sat an X-Men next to a 1995 Frankenstein and asked a layman to pick out which one was technically more advanced, they'd probably go with the 17 year old model because it had stereo sound and a bigger DMD!
Now with WOZ... it's going to be painfully obvious it's more advanced than anything else out in the field.