I can offer this up as well.
I happen to own one of those 'old pieces of shit'. An '83 Toyota Pickup. Solid axle front, Spooled rear, EZ locker front, etc. etc. etc., and I can tell you all, I can't wait to get my Xterra finished.
The reliability of the newer fuel injected vehicles is great. The reliability of the older stuff is, well, not so great.
Don't get me wrong, I love my little Lemondrop. She wheels very good. Excepting for the carbueration, 35" tires and stock gears. Other than that, she's a tractor!
But SAS in my Xterra? Night and day. That's all there really is to say about it.
Quit whining about not knowing the price (yet). When it does get released, most of you will end up saying "That's frickin' awesome man....I'll have to save up the money for it over the next couple of months." anyway! So just relax. You'll all be happy, and some will do it because the price is so great, and not because of the added wheel-ability.