It's rare to spot Western Mountaineering gear on sale. Yesterday I noticed that my favorite mountaineering store in Mammoth Lakes finally has an online catalog and some of their WM stuff is actually on sale. The size selection is limited though.
http://www.mammothgear.com
For example, they have the Flight jacket for $180 instead of $225, the Flash vest for $100 instead of $125, the Meltdown jacket for $200 instead of $250 etc.
They also have a couple Puma and Dakota bags on sale for 31% off.
They have quite a bit of Arcteryx clothing at 41% off.
And shipping is free over $50.