Perigord mentioned this in the above post "In recent years, no more birkins or kellys have been sold at the sales." so i assume that before recently, there were birkins or kellys sold at the sale. I guess it was wrong assumption
My SA said B and K never been on sale (meaning discount) for public.
S was meant for an employees's purchased item.
I'd get time machine for Hermes too... Mostly to g back in 2008 when bags were available easier and I was offered choices of B and K just by walking to any H store. Now economy is getting better and people started buying again...