My friend and I have started to fine-tune our tastes in games over time and this has led to us finding many of our games severely underplayed. I'll start by listing what we have:
Mistfall with full kickstarter benefits and and valskyrr add-on
Betrayal at house on the hill 2nd edition
Star Wars Imperial Assault with: Han solo, Chewbacca, IG 88, Rebel Sabateurs add ons.
Smallworld base set
Summoner Wars Alliances Master Set
Frag: Gold Edition
Dungeoneer: Tomb of the Lich Lord
All of these have been opened but only played 1-4 times. They are all organized, and well maintained.
What we'd be willing to trade for is:
PACG base sets (preferably wrath of the righteous, Skulls and Shackles, Rise of the runelords in that order)
Lords of Waterdeep