Yeah
@Holbs I would not recommend he go down the box kit NVR/camera route - they strip too much out and put them on inferior MP/sensor ratios, and the NVRs are limited in bandwidth to 88Mbps and it will just struggle. It will cap bitrate at 4092 for the cameras.
If he goes the NVR route, buy the components separate so that you get the right camera for the right location.
But with that said, when I was looking at replacing an existing NVR, once I realized that not all NVRs are created equal, and once I priced out a good one, it was cheaper to buy a refurbished computer than an NVR.
The Dahua OEM 5XXX series is $320 for an 8 camera version and $370 for the 16 channel. These are rated at 320Mbps (compared to 88Mbps for box kits). And these do not include a HDD.
So for $320 someone can find a very capable refurbished PC and toss BI on it and not be limited to 16 cameras...