My back hoe is set up with the needed hydraulics for a hammer. It never had one, but it is set up for one.
Having run a jackhammer a day on a few occasions in my life, I easily understand not having one, who wants to run it?
Physically painful days after, loud, dusty & either sweltering heat, or in VT, more often to break frozen ground.
Last round was Smokey House Center, one of those big acreage non profits formed from the estate of a billionaire. They had built a greenhouse, & direct buried the feeder inches deep under a road. The new feeder they needed, I priced for them with the written limit of one week in late November. After that, all offers were off, it'd be time & expenses. They waited a week into January to decide. I then suggested they wait until spring. That was out of the question.
Their cost doubled.