I bought a 16 camera package from lorex on black black Friday of last year. Was 1,200.00 for 16 2k cameras and DVR. The picture is incredible during the day and at night. My brother in law works for a security company (Level 3 tech) and is very impressed with the cameras. Dont waste your time at Sams, costco, etc.
I highly recommend Lorex.
https://www.lorextechnology.com/hd-s...meras/N-yk46px
Edit: Bought something similar to this -
https://www.lorextechnology.com/hd-i...0804-1612W-1-p but it was MSRP 3,000.00 at the time. Cameras are progressing incredibly fast. Most camera companies are skipping 2k and going straight to 4k.