There is a development in Hillcrest right north of washington. The developer turned all the 2 bedroom apts into large 1 bedroom condos albeit at a 2 bedroom price. The agent was right up front though that the reason for this was the parking situation. I saw one at an open house 2 months ago and most of them had sold.
I too feel that 1 bedroom condos are basically pointless, especially in a fairly low density area. Then again, someone is buying them.