On Addison Street in Downtown Elmhurst, there is this really pretty building. Limestone front, crisp black awnings, iron railings. Since I've been walking past it, a firm named Armstrong Aerospace has occupied the ground floor and what appears to be the second floor. From what I've been told at some point there was a really neat authentically Italian coffee shop in the ground floor that apparently didn't have that big of a following. Either the aerospace business is booming (and the firm had to move to bigger digs) or busting (and they're downsizing their space), but one thing is certain: Downtown Elmhurst now has ANOTHER vacancy and opportunity to re-think Addison Street. Coupled with the closing of the Magic Shop on the corner of 1st and Addison, and the former Papa John's storefront on York , there are 3 VERY high profile storefronts that will be filled with new operations. What we don't (frankly) need is another salon! The Downtown hold...