Its not really a "bought" but I traded money for it so I'm counting it.
A buddy recently got out of warhammer and traded/gave/sold all his stuff to a second buddy. That buddy (while thrilled) only cared about one of the three armies. I thought he'd sold the other two, but when I was visiting the hometown over the weekend he surprised me with 1 of them in a box. In his mind, he didn't think that one should be sold outside of the group. its the one Buddy 1 used for over a decade and that we all played hundreds of games against. But Buddy 2 had no space to keep it, so he was passing it on to me. I didn't want to take a whole army for free, so I gave him some cash for it and he kicked half the cash back to Buddy 1. This keeps the army in the "circle", and if Buddy 1 ever changes his mind its available for him to reclaim.
And thats the story of how I got 2000 points of High Elves by surprise. Its a pretty solid army, although pretty beat up from spending the last few years in a box. I need to dig up my bitz to replace some weapons. Somehow 5 swordmasters all lost their swords. But its a fun mix of models from 6th-8th edition.
Either in 2009 or 2010, a friend of mine gifted me his failed Eldar and High Elf armies. He'd barely bothered to assemble either properly. Most of the miniatures had large dags, off-centre limbs and half-hearted paint jobs. Most of them got damaged as he'd stacked his pile of smutty motorcycle magazines on top of the box he'd been keeping them in, bending a lot of lances out of place and snapping the flight stands of the grav vehicles. Now i see why the elder races fear Slaanesh
