Laz0409, I was standing right in front of the computer system and I could see all the stocks they had when I asked if they had any 30/35 birkin or 32 kelly. That was 1030am in the morning and they only had 28 sellier chocolate kelly, 2 gold shoulder kelly (i purchased one of them

). They had a 35cm birkin but that's exotic leather with diamond straps.
I ended up with the shoulder kelly as the 2 French SA convinced me i look chic & modern with it. I tried on the sample 32 kelly and it looked "too traditional" according to them.
Anyway, I paid for it and told them that I would go back to collect the bag before they closed for the day. I went back at 4pm and whilst waiting to pick up my shoulder kelly, I spotted another SA and I asked him if there were any birkins. He said they received some in the afternoon, but mostly were gone but still he searched for it in the system. Again I was standing right in front of the computer so I could see all the stocks available. He then said there's a black & gold 30 birkin and came back with the black one, he said he couldn't find the gold one and presumed it could have been shown to someone else and if its not being sold, he will bring it for me. True enough, there was a customer trying the latter next to our show desk! Also noticed some others inspecting a Kelly Relax and a 40 Birkin...
But alas, a 35 is what am after. The 30 just looks too dainty on me even though am only 5'1 and weighs 92 pounds. I just can't carry small bags well!
Initially I was worried about the fashion week situation just like you. But am glad I made the trip and I have nothing but praise for the SA(s) in FSH. Am a first time Hermes owner and being asian, am really impress with the level of service I was given. As to your question if they were selling it to "normal people", lol, I think I made a very good example of being a mere mortal! I was just wearing a black coat, nothing flashy and carrying no bag but came out with one!
Lastly I do wanna add...contrary to what I read from here, I wasn't given much or rather any attention in George V! I did drop by at around 1ish... The store wasn't very busy and I asked to see the Hapi bracelet and was told by a female SA to go to the glass counter and she would be with me shortly... I waited for about 5min, and she was nowhere to be seen when I looked around! Nobody came to offer any assistance too so I walked off.