Interesting that the ads are different across the country. Well, I'd expect some differences but not like that. The ad in my paper was very clearly with the side window, and the store did carry the P-160, just without said window.
The Antec site doesn't show 2 P/N's, one with window and one without - just the case alone, and the window as another part you order separately. Newegg must be combining them. Hope so, I ordered one from them yesterday
C'DaleRider, did your store have cases with windows on hand? Or did you also get an ad that showed the standard full metal side? I'm guessing the latter.