I have done both and quite frankly saw no difference in response or client traffic. The vinyl sign (large banner style) was actually easier to see most of the time. At night the illuminated sign was a bit easier to see, but I don’t think it made any difference in exposure overall. I haven’t invested money in an lighted sign since then. One spot did provide signage as part of the CAM for the building and to keep everyones’ signage consistent.