Strength is Weakness

It is not that hard to understand, every strength comes with its particular set of weakness.

For example, a more powerful car will consume more fuel, a popular singer like MJ will lost his freedom to walk freely on a crowded street etc.

There are strengths and weaknesses in every CCTV gear and solution too.
For example;

(1) Higher resolution camera produces clearer video but it comes with bigger video file which required higher bandwidth and bigger capacity hard disk.

(2) Big size camera is never meant for discrete application or small pinhole camera is not build to ward off criminals.

Hence, when it comes to design a CCTV system, the most advance, biggest, most powerful surveillance gear is not always the best choice. Choosing a suitable CCTV gear is more important than choosing the best gear.

Like this episode of Spy verses Spy, the toughness of the iron can also be the deathliest weakness.