Here, I have used a 7ft by 13ft L shape kitchen to illustrate how the cabinet price would double or even triple based on your selection of color/finish, door style, internal accessories, and overall design. The as-is version of these kitchen cabinets are roughly $14,000 (without installation). By changing the 4 variables mentioned, I can bring the cabinet costs down to the $4,500 price mark.
Examples used are from KraftMaid Cabinetry, based on 2013 pricing.