wrote
...
I just got an estimate for replacing the old aluminum widows on my
house in Tucson, and I am still in shock. It runs about $1500 per
average-size window--installed. I have adequate experience in doing
the installation, but I am wondering about where I could get good-
quality vynil double-bane replacements. Would Lowes and HD be the
places to look at? Thanks.

We had estimates by Lowes and HD for 2 windows here. HD was almost twice
the cost.