From school,
2 triple.fis, a Westone 3/4 in the UE Metal case, M50s, HFI-580, SRH440, Monster Turbines, Alessandro MS1, Marshall Major. Oh, and lots of Jays. And quite a few Powerbeats.
Only one Beats Solo. All running unamped.
Oh, and rumours are that there is a junior Scout who has reshelled JH13s.
An ex-classmate of mine claims to have:
2 SR60s, SRH440s (which he traded his Westone 1s for), Etymotic ER4, Triple.fis (which I saw, and prompted a discussion about his collection), JH5s, Soundmagic PL50s, and a Fer-de-lance running through LOD (which I unfortunately have not seen yet). And, I don't think this is his full collection, I just couldn't remember all of them. I am going to give him the benefit of the doubt, because I find it unlikely for someone knowledgeable about Jerry Harvey crossovers, and a pretty esoteric taste from a mainstream perspective to be lying, and neither probable for someone to make up and recite a collection like that off the cuff.
Funnily enough, he was the person that bought the bundle deal from Jaben's site I was eying. (he got a triple.fi, MS1, and I forgot, either a Hippo Box+ or Beyer DT231, for about the equivalent of 82 USD). He sold the MS1 to another ex-classmate for 50 USD.
Yeah. You can combine my sightings with that from crinacle to get an approximate picture of the state of head-fi in our school.