Decorating question: Are stainless steel sinks and appliances the only ones that are popular?

Thinking about maybe doing some work on my kitchen, specifically replacing a countertop and sink. I’m not crazy about stainless steel but it seems to be what sells houses and I want my house to be very sellable. Also – while I’m on it, granite countertops or corian or…...My appliances thus far are white and don’t think I want to replace them right now.