Not having ever visited the location of where the old Flynn's was, I think I could've easily be swindled into believing the Flynn's building in the new movie was the same old location from 27 years ago. (Although, since I'm an educated Tron fan, I know the old location is now, or recently was, a Italian restuarant or something, so I'd realize it likely wasn't the same.) The screenshot from the new movie there looks similar to how I remember the streets in the old movie. I never thought it was a 'highway' next to it or nearby. I think it'd easier to convince me it's the same Flynn's because of how the old movie framed the shot -- gives you slight tunnel vision -- you can't really see the surroundings very well.

I recently visited the houses that was filmed in Goonies. (The one that the kids lived at, and the one that 'Data' zip-lined to that house from.) The location there in-person didn't seem at all how I remembered it in the movie. This was due to how the area was framed by the camera; I always just had a pre-conceived vision in my mind of how that area looked.

PS: It looks like they're maintaining the old Flynn's location quite well, which is very nice to see. I would be sad if that place ever got all dilapidated.