I'm just not sure about some of the whole thought process behind demos like this. A very average or below average player goes to something like this, thinks 'Wow! I GOTS to have one of these...' and buys it. Takes it home, and immediately sounds like poo.
But then, he goes, in a couple of years, to the NEXT presentation, and repeats the whole mistake! Over and over... And probably sounds no better on his latest purchase than he did on his first. But he keeps buying 'em!
God bless the rich! These things would never get made if the manufacturers had to rely on people that CAN play!