Thanks! Managed to find a black controller at a Walmart right down the road from me, along with PowerA Play and Charge Kit for $9.
https://brickseek.com/walmart-inventory-checker?sku=52538320
Got the last Sony MDR-XB650BT for $19 a couple of days ago. It was marked for $45, but scanned for cheaper.
Also, found a Sandisk 250GB Extreme Portable SSD for $13 hidden behind the 1TB versions. Not a bad haul.