they do seem to have a few highend headphones around but it seems the only headphones they have instock that i would think about auditioning is the hd800. all the rest are either out of stock or simply not there! im sure they would let me audition them tho if i called in ahead of time but idk i guess ill find out when i call them.
Also, I forgot earlier, but there's a meet in the northern VA area coming up on May 25th. there will definitely be at least LCD2s there among other things. Not sure where you are located in VA but this is in Annandale, VA and would probably be an easy way to try out a lot of gear.