I went to the Holiday inn. No time to visit the Hilton. Parking was extortionate (normally find free parking at these events).
Place was very quiet. Some interesting rooms from the likes of Funk firm,the LampizatOr room with good sounding turntables. Aptly named the Zontex! This has a 14.5" wooden arm that was being air balanced by a magnetic system at the bearing (back end of arm, not collar!).
On the ground floor was Headphones.co.uk with a range of demonstratable headphones and amps. For me the Beyer Dynamic Art 1 and Seinheiser HD800 (in balanced mode) with dedicated HD800 amplifier came out tops. Competition from Audeze was missing and the Grado GS1000 were sounding somewhat under par no matter what amp it was plugged in to. Very pronunced top end.
Not enough to peruse to fill a whole day tho'. I arrived just before 1pm after spending to much time looking for cheap parking (remind me not to visit Brighton again!).