The main factor which makes the difference in price is the amount and quality of the materials used.

No woman would pay an expensive dressmaker to concoct a dress of cheesecloth, and very few would hire a high-priced upholsterer to cover a sofa with cheap shoddy fabric. It makes no more sense to pay a carpet manufacturer to design and weave for you a floorcovering without sufficient material of good quality, because in every case the labor costs are way out of proportion to the life and looks of the finished job.

By paying a good deal less than twice as much money you can get a floor covering that is much more beautiful and will stay that way at least twice as long.