What’s your latest high-end audio purchase?

It's been over a year ago, but a Cary SLP 05 from Cary's preowned page.

It replaced a Cary SLP 90.

I thought the price was right. 

I purchased HRS Isolation platform for my Rega P8 (It may not be the same as installing a shelf on the wall)

Technics SL-1200G - wonderful sounding and equally beautiful to stare at. 

REL Carbon Special. Replaced a REL S/510 for no particular reason other than opportunity. Soon as I set it up, I had a WTF did I just buy moment. It’s a beast and I thought for sure it would be too much for my room. Turns out that it’s absolutely fantastic. Zero regrets and I’m loving it.

Small Green Computer optical isolation bundle to clean up the ethernet cable signal from wifi extender to streamer. Subtle improvement, nothing major, in clarity and sense of space. For $350, it was worth it to me. Probably similar improvement to etherregen for half the price and in stock now. However have not tried etherregen so don't take my word for it.