Which closing mad you most sad?
https://sites.google.com/site/ramsayskitchennightmares/
At the end of each episode you get the impression that most succeed but actually well over 60% fail (it's actually worse explained later). In any case, for me Cafe 36 was a sad story because the elderly couple were so nice and they invested everything and the husband looked like he was developing expediter skills. Here is a website that gives a more meaty version of the follow up other than open/closed http://theashleysrealityroundup.com/2012/03/19/kitchen-nightmares-seas on-2-restaurants-where-are-they-now/ After learning they closed just a few months after filming the scene were they offer Gordon an expensive bottle of wine and he insists the they keep it so they can drink it together later in their restaurant was very morose.
Also, I was sad to see that Zocalo's was on the list. This was the Mexican restaurant where the husband worked so hard in the kitchen to make it work and had such a good attitude.