I was pretty active on Head-Fi at the time and snatched up this deal when someone posted it. I think the HD800 was still $1500 at the time.
Though that is probably not even my greatest "steal", which could be loosely seen at actually stealing. I bought the Fostex TH-900 from a relatively new online vendor, and they accidentally sent me 2 of them. I checked and legally in the US when a merchant sends you something you didn't order, you aren't required to send it back. I held onto it for a bit and that company never contacted me about it and I sold it new in box for $900. I guess they were too disorganized to notice.
I'm not all entirely lucky or wise with money. I bought the Hifiman Edition X on release for $1400 and similar tier headphones like Edition XS are less than $500 now. But I still like them enough for it to be a permanent part of my collection.
Utopia 2022 brand new for around $2,200 USD give or take this past Sept.
I'm kicking myself for not taking more advantage of this sale. The fact they used shoppay made it trivial to have them ship to a proxy shipper, and somehow shoppay charged 0% sales tax. I got the clear for $700ish all-in and noticed they had the HD800s for $1100. But by the time I got my Clear and verified the entire process works they raised their prices on all their Focal and Sennheiser headphones.
Damn I wish I knew about this. Would’ve jumped all over it.