Covering more of your field of vision is part of the point of a bigger screen. I never understand why people buy a 46" TV and put it 30 feet away.
Partly, but it is also a balance with having a greater focal distance. Think about it, sitting 2 feet away from your TV might give you the same field of vision as going to the cinema, but it's not the same kind of experience (ignore the audio for now). The distance we focus at matters to our brain, I guess because this is hardwired in with the sense of scale. That's my guess anyway.