I thought my case is quite specific and that's the reason, but after talking to pretty big amount of friends of mine I was quite surprised to realize there are lots of people who would agree with my point.
And the point is while being a gamer and using pretty expensive headset (Beyer's MMX 300 to be precise) I don't give a damn about all of that surround sound scouting modes marketing bullshit. I do however want to get a good quality for stereo playback whether it is a game or music listening or whatever.
So basically I have to use some proper DAC/Amp with my headphones for decent listening experience. Well, you know, proper power delivery filtering, async usb connection, decent DAC, proper amplification section, all that stuff. The problem is, those are not meant to be used with the headsets and therefore don't provide you with a mic input. So in addition to using the DAC/Amp hypothetical me has to use his on-board audio (Realtek-made sigh) or a discrete sound card from ASUS/Creative/whatever.
The question is, with the demand for some proper DACs going on lately why no manufacturer tried to add an ADC with mic preamp to the mix? I know there are Creative discrete audio cards (E5, G5 etc) and I tried G5 myself. Nowhere near my O2+ODAC combo in terms of audio quality, and EMI both for headphones out and for mic in drove me nuts in addition to that. By proper DAC/ADC combo I mean the device that uses all the benefits of a good DAC/amp I mentioned earlier but adds a proper ADC+preamp for mic input. I know some USB controllers (namely Savitech's ones) allow configuring such a device.
I'd like to know your thoughts on this guys.