Do you always sit in the sweet spot?

I find myself only occasionally (maybe 20% or so) sitting in the sweet spot when listening to hi-res MC discs, for more than 1 song or so. I'm usually up and about doing other things when listening to music. What percentage of your MC music listening time do you spend sitting in the sweet spot, and for how long (1 song? >1 song? whole albums?)? Maybe I'm wasting my money on MC discs? Just wondering.

Strangely, the only time I was able get the MC experience from an entire disc from one sitting, was when I had a Acura TL loaner for a few days (has DVD-A).