I ran across the photo above on a blog by Andrew Hyatt. Mr. Hyatt describes it as such:
My local slice shop, "A&J Pizza," has the slogan on their box: "You've tried the rest..." I'll stop right there for a second. Now, your Manhattan place would fill that out with the standard "now try the best!"
But that's just not how we do it in Queens. No, "You've tried the rest, now try A&J for a change."
On the same site, Mr. Hyatt also writes about DeMarco's.