The gap between "the tree is gone" and "the job is done" is almost always the stump, and how a company handles that gap says a lot about how they operate overall. Some operators leave grinding out of the initial quote entirely and present it as an add on once the tree is already down and the homeowner has less leverage to shop around. Others include it but treat it as a rushed final step rather than its own process with its own considerations, root spread, stump diameter, and proximity to structures or buried utility lines all affect what grinding actually requires. A stump that sits untouched for an extended period isn't neutral either, species that are prone to resprouting will send up new growth from the root system the longer it's left, turning a one time grinding job into an ongoing nuisance of cutting back pesky sprouts season after season. There's also a practical timing consideration if replanting is part of your plan, since new roots from a different tree need room to establish, and that's harder to guarantee if the old stump and its root system are still occupying the space. None of this makes stump grinding complicated, but it does make it worth doing as a deliberate, planned step rather than whatever happens to get finished last on a job site.