On the design shows, they are always getting granite sections for cheaper than buying a slab. If your countertop isn't 1 long section, you might be able to go to the remnant section and find enough matching pieces to do your kitchen. They sell smaller pieces for less money per linear foot than slabs.
We have quartz, but only because I was able to stack 2 big discounts on top of each other when a new Home Depot opened locally.
Actually, I think I have four 3 ft sections. They are separated by the sink on one side and the stove on the other. Where can you find remnants, because that actually sounds doable. I do not have a strong color preference. I would prefer quality and longevity over style.