WOW - Alternate Arena Season 3 Vendor Locations : World of Warcraft General Discussions

For your Season 3 buying pleasure, vendors will be made available in some additional locations. If you want to avoid the crowds in Area 52 there will be vendors selling the same items outside of the Nagrand and Blade's Edge arenas, as well as in the town of Gadgetzan.

http://forums.worldofwarcraft.com/threa ... 36&sid=1#0

Blizzard recommends visiting these alternate locations to ensure you're able to view and purchase the items with the least amount of interference, both from visual lag, and trigger happy players.