At that point, it's not a theft of opportunity, it's a determined effort. Pretty much nothing will stop a competent, determined thief. The objective in most counter theft efforts, is to stop the amateurs.
The objective of putting the chain where it's as inaccessible as possible, is to raise the bar on planning and equipment required, time, noise, and pain in the *** factor for the thief.
Youy could bury a GPS tracker in it, but now you're into a monthly expense... There's higher levels of thieves, and there's higher levels of security... it comes down to the value of the equipment you want to protect.
Chained into the ground tight = not gonna lose it to an amateur..
A infra - red camera will give you a picture or video of who offed with your stuff, but the red glow from the LEDs lets the thief know to wear a hoodie and bring a can of spray paint..