Henrys is interesting. I started buying from them last year because I don't travel to the U.S. as much for work. This year, I went to do some more shopping online and noticed their selection has been drastically decreased. If you look at their bag selection, for example, they don't carry many of the models that I would consider "normal" models. I just searched for a long-lens bag and came up with nothing.
Maybe their clearance sale is to significantly decrease the value of their inventory costs (they might just have too much $$$ tied up in the clearance items).