One of the benefits of living in a small 1BR condo is that I only had 5 windows to replace. I was able to get them all done for $2500. No real impact on my heating bill due to poor insulation and an old inefficient heat pump, but it's so nice to be able to (a) actually open the windows and (b) not have to use a stick to keep them open.

And the whole tilt-in-to-clean thing is genius.