So I have a GPS tracker,
https://www.terminusgps.com/ on my trailer, my son's truck and his welder. The trailer, because so many vintage racers have had their trailer stolen with their race car inside and they were not recovered. It is cheap insurance, same for the new engine driven welder in my son's truck. My son's Dodge Diesel is a $10k truck but due to age they will only cover for liability, hence the tracker in that that where we can also remotely disable from our cell phones. All trackers we can set a geo fence around, to alarm our phones if it goes out of area.
Now here is the fun part. My son got a ticket for 70mph in a 45, he swore if he was speeding it would have been 50mph max... well guess what pulled the tracking data and he was correct! Got an attorney and gave that to him to fight the case with.
I cannot tell you the number of recoveries that have been done in Houston with these systems especially on high end Dodge's that are the hot thing to steal.
For the $25 a month fee I would rather get my stuff back than have to negotiate with insurance company or as in the case of some items there is no insurance for them.