I was at HE 2004 and I would not base ANY buying decisions on show sound. The rooms are just not optimized for any reasonable evaluation. One of my favorite speakers (Vandersteen 5a's) sounded absolutely dreadful...for the first time ever. I'm running my electrostats with Innersound Monoblocks. One of the few amps that, in my view, sound great with stats is the Atma-Sphere. If you have a line on a decent pair...I wouldn't hesitate.
harry
harry