1) Cost. AHD & TVI CCTV cost is very little more than the old composite video (CBVS) but is about 2 times the resolution in 720p and 4 times the resolution in 1080p
2) Wiring. Can be wired in RG59 coax, CAT5 cable,CAT6 cable or ready made cable kits.
3) Long cables runs upto 350m without boosters.
4) Backwards compatible with older analogue (CBVS) CCTV equipment.
5) Very easy to install