I have a brand new Big Agnes Shield 2, 4 season tent that needs to go so I can get some dental bills paid. 

It hasn't even been removed from the stuff sack. $420 includes shipping.

I have another one of these tents and it's absolutely bomber in crap weather. Breathes really well despite being single-wall (I think it has Gore-tex pro material) and is crazy light. Built for fast and light alpine climbing.