Road Force balancing won't be necessary in most cases. From reading about it, RF can help find problems, but won't be needed most of the time.
I suspect most shops that have them don't use the full capability unless they're trying to track down a problem, as it takes extra time.
And I know a little about what I'm talking about. I worked in a tire shop in college and I've installed and balanced hundreds of tires. We didn't havea RF balancer, and normal dynamic balancing was fine in the vast majority of cases.