Here's why I won't be swapping my Nikon D750 for a Z6 (but maybe you should): Digital Photography Review
Amazon.com : Nikon D750 24.3MP DSLR Digital Camera with AF-S 50mm f/1.8G Lens (1543) Deluxe Bundle with 64GB SD Card + Large Camera Bag + Filter Kit + Spare Battery + Telephoto
Nikon D750 with 50mm f/1.8G Lens, Black, great condition 18208015276 | eBay
Nikon D750 Review: Downgrading from the D800 : Kevin Young Photography – Fine Art Prints
Nikon D750 DSLR Camera with AF-S 50mm f/1.4G Lens 660960099744 | eBay