I deal with IP cameras regularly but not in a surveillance-ish way. My buddy is opening a 5000 sq ft gym and asking me for assistance on a camera system. Budget is about 10K for equipment, and we can handle all the installation. It is a mix of indoor/outdoor cams. The cameras are for liability and asset protection -- they will rarely be viewed live and only archived video pulled when there is an issue. I want 3MP minimum, pref 4K.
One route being considered is Axis cameras, recording to SD card, and then access cameras directly as needed to pull video for incidents. This would get us about 20 cams @ $500/each depending on which cams end up getting used.
Another route would be more traditional NVR route with IP cameras. Make/model is a mystery to me, although I'm assuming it would end up being Hikvision due to cost.
All-in-one is another option (ie Lorex or GW Security systems on Amazon) that would get us 24-32 cams and save a lot on budget. These could be supplemented with better cameras (Axis) at important locations although we'd end up with two different separate systems at that point.
Any off the cuff suggestions/thoughts/recommendations?