This is a budget project. Peninsula in my condo kitchen attached to a perpendicular wall houses dishwasher and sink and a small cabinet. Dishwasher steam damaged the underside of the corian countertop. Builder did not use barrier protection. Along the back of peninsula a 1 ft high wall forms another countertop surface that doubles up as a breakfast bar. I need to replace the countertop. Should the two surfaces of the peninsula match? And should I change the rest of the countertop in the kitchen to match the peninsula? As of now there is the same material on all surfaces. Would that be bad from a design point of view to change just the surface around the sink and leave untouched the breakfast area?