When and what was your last significant equipment upgrade?

Zavato I am with you on the Bricasti. My upgrade was the 2K Melco N 1 server, player. Stores 2 terabytes. I purchased a Buffalo CD Ripper that is made by the same company but sells for about $160 dollars. Much easier then burning to a laptop. Now while I listen to music I can burn CD's at about one every 4 minutes. Adds a lot of joy to my listening experience. 

I recently purchased 2 Nitro power cords from Mad Scientist cable. Bob P. is the mastermind behind the products. The Nitro is his reference cord. I've used many a power cord, some quite costly. These are the best I've heard, absolutely jaw dropping.  Mad Scientist offers a 30 day trial with full refund minus shipping. Starting price for 1.2 meters is $399.

Sold my PS Audio P5 Power Plant earlier this year only to yearn for another.  Recently replaced it with a P10.  Suprisingly it's a solid upgrade even on light duty sources only. 

replaced MIT MI-330 pre-to-amp interconnect and MH 750 Tube Terminators speaker cables ( both of which I gave to Goodwill - the costs to reterminate the bad connectors plus time, effort and cost to list and sell, was close to their value as old used cables; not worth the time and trouble) with Grover Huffman cables.  A tremendous upgrade in clarity.

@gshepardbuster  Can you elaborate on the differences between the P5 and P10?  I am on my second PS unit.  I went from a P500 to a Premier.