Centramatics not only balance the tires, they help to balance the whole wheel assembly. I have them on my semi and they have added additional mileage to the life of the tires. I had tires balanced when installed. Put the centramatics on and could tell the difference. With the cost of a tire over $500.00 each, adding a significant amount of miles on the life of the tire makes the cost worthwhile.
I do not have them on my pick up as do not put enough miles on it to be feasible. I would think any high mileage driving would make sense.
The cost is not prohibitive and only you can decide if the cost is worth it. AS I said, to extend the life of my tires , it is worth it.