We rent. Dh is in the military, and we have never lived in any one city for more than three years (we are starting our 4th year in DFW, and that's a record!).
We feel it is pointless, and financially irresponsible, to buy a home, since we will not have enough time to build equity in it to make it profitable for us to sell.
Not to mention the stress of constantly having to buy and sell homes, and what would we do if the house hadn't sold by the time we had to be in a new city?
So we rent. And we will do so until dh retires and starts a second, logistically permanent, career.
We had been renting a horrible place, but recently moved into a very nice 4br, 2ba, with 2 car detached garage and a nice yard, in a very well kept neighborhood, for just under $1000/month. Which is a very good deal, in this area.