You probably went too far saying that, as if they were the only ones in the market. There are many people using them, but that doesn´t mean there are many others using Senns, Focals etc. When you have an Audi you see people driving Audis everywhere. I just said I experimented with both and couldn´t PERSONALLY see them having advantages over the HD 800S. Hey! I have an opinion of my own. Reminds me of Apple users (which I am too), one does not mean the other is bad, they are just different, and depending of your taste and your goals you may see one fit your needs better than the other, but going as far as saying that they are "THE high end headphones to have" sounds ridiculous IMHO. Sooo many great headphones out there... the problem would be not experimenting and just following the trends à la Yamaha NS10.
When I said THE, that was not to say the only high end HP’s..... that was to say some of the most desired HP’s. They are given as the upgrade HP for the HD600, 650 and Beyers and occasionally HD800’s in studios.