Nothing is worse than sticking your finger in somebody's eye who has just spent $3,000 on those little plastic bastids. A simple - "That sounds nice" and a grin will make everybody's day go much better.
Then you just need to hope he doesn't hear your setup and realize you've lied to him.
Of course, those Bose would sound pretty good after they have been broken in for 150 hours and if they were connected with top 'o the line Monster Cable stuff.