Think long and hard about how you actually live...how do you spend your time in the kitchen? how do you entertain? Don't build in features you'll never use. I skipped the pot-filler faucet; it's not so hard to walk the three steps from the sink to the stove. I don't bother with a wine fridge; I don't keep too many bottles on hand at one time and generally remember to chill as needed.

But I have a table-height kitchen island (29"), which is several inches lower than countertops above cabinets. I'm short, it gives me a comfortable working height in my bare feet. No reaching up to chop on the higher, 32" countertops; I can roll out pastry and knead dough without straining. If you're tall, you might consider making the island a custom height for your comfort.

I also put the microwave inside a cubby in the island; those high on the wall things aren't short-person friendly. Custom island also has full-extension slide drawers 4" deep, sized to hold spice jars. Island has electrical outlets as well.

Didn't want a walk-in pantry; did a floor-to-ceiling cabinet pantry instead. Dual doors open up; separate sets for top and bottom halves. Adjustable shelves inside make the space flexible.

I put a double arched top window over the sink. Lovely view makes washing out your AM coffeecup a bit more pleasant each day.

Fridge drawers are overpriced and undersized. You will quickly find that LOTS of things are oddly shaped and won't fit into the fridge drawers. When they wear out (12-15 years), you'll be stuck with an oddly shaped hole and limited replacement options. Ditto for those dishwashing drawers. It costs 19 cents to run a full load; you're not saving much money by washing a single dish drawer at a time.