Hi, with all due respect these are polls you got off of a forum that is primarily headphone oriented so of course they will be skewed towards headphone/portability use. But the fact that at least 22% of the people who voted 100% desktop on a headphone forum should speak quite a bit to you (not to mention there are a few posts from people on here asking that you leave out the head phone amp and other doo-dads should say something as well). Say you posted this on Steve Hoffman's forums which is more 2.1 channel stereo and home theater based I'm thinking you may get different results.
I'm not saying that you should change the specs for this particular device as that would be ridiculous at this point, however what I'm trying to say is that there is a market for a statement DAC sans headphone jacks and other doo-dads that can fit in somebody's audio rack and their entire digital system could be centralized around it such as PS Audio's PWD or DirectStream, Rega's DAC, etc. However iFi kicks butt in price catagories and your strong point is performance/price that the others IMO don't match. That's all I'm saying ...
See below for upcoming top of iFi DACs. And as far as TOTL full rack size standalone DACs, they technically already make this: http://www.amr-audio.co.uk/html/dp777_individual.html Based on what I've heard of their entry level stuff, I can only imagine how much I would like that one, if I could ever afford it.
3) A "statement" Desktop DAC will become available with the iDSD mini this year and it will be quite something else...separate thread.