Mike,
Andy's point regarding the value of your house matters most. Laminate won't promote the sale if it's an upper or high end home, but won't detract value from a lower to mid-range. The value and type of countertops should correlate with the relative value of your home. I'm currently building a mid-range house and planning to use a Corian type product. Frankly I don't care for the appearance of granite as a counter, regardless of price. Of course the person I share the kitchen with has other ideas and thinks marble is really cool. It must have been that trip to Italy.
Sg
SALMO, marble is the last thing you want in your kitchen. With all the food and oils and wines that are used in the kitchen, within a year your marble will look like a staind mess. Mantence is high with marble. You have to reseal marble once every 6 months or so with an impregnator which is not cheap. . Plus marble is nowhere as strong or structual as granite and is typicaly more expensive then your granite slabs or tiles. Kitchen counters take abuse like no other surface in your home. If you want something to last and stay shinning a high water polish on a granite slab will give you years and years of delight. imo 10 years stone mason