Concrete runs on pours, and pours run on weather, subgrade and crew availability. A driveway, patio, slab or set of steps is a bigger single decision than most home services — often the largest cheque a homeowner writes that year outside of a roof — and it moves slowly, with photos, references and comparisons.
There is also a permanence problem no other trade has: nobody wants the crack, the wrong grade, the pooled water at the door. Buyers are screening for competence, not price alone, and they can see the difference between clean edge work and a rushed pour.
Meanwhile the commercial side of the book behaves nothing like the residential side — different search terms, different lead times, different proof.