Generally, high-quality pieces would have been made by artisans (and thus usually custom), not factory-made. The high demand meant that the skills to make these pieces were more commonly pursued by woodworkers, thus making a larger labor pool (and so, cheaper labor), but the technology available and higher price of resources means that it would have required more expense in the form of materials and more man-hours to create the product.
Generally, high-quality pieces would have been made by artisans (and thus usually custom), not factory-made. The high demand meant that the skills to make these pieces were more commonly pursued by woodworkers, thus making a larger labor pool (and so, cheaper labor), but the technology available and higher price of resources means that it would have required more expense in the form of materials and more man-hours to create the product.