I am putting one in the basement this year. I have the stove and freezer and a counter just need the fridge (craigslist) and I am good to go. I love to bake and I figured this is the best way to be able to bake this summer. I could also use the extra oven on holidays. When all 5 kids and DIL are home we need 2 stoves.
I'm envious of your basement setup!! We had a summer kitchen in our garage for a few years (in our old house) and I really loved it. The garage was under a big shady tree, had an attic fan for a slight breeze, a small laundry basin with hot running water, and an old gas stove with a big stockpot burner in the middle. It was always the perfect temperature, and being right off from the garden, the perfect place to can during the summer. Boy I sure miss that garage and old stove.