Mostly it's an issue of storage space. Our kitchen is small enough that some of our appliances live in the basement and the office. I built a poor man's pot rack, and that has helped quite a bit, but things are still tight.

I found a site selling AC seconds at a huge discount, plus an additional 20% if I buy 4 pieces. So here's what I think I'm going with:
1qt sauce pan - to replace 1.5qt nonstick saucepan
4qt sauce pan - to replace 3.5qt nonstick saucepan
5.5qt saucier - to replace 4qt nonstick chef's pan
12" fry pan - because I don't have one
2.5qt Windsor style sauce pan - because I always seem to need one more saucepan
Any feeling on the straight-sided saucepan vs. the Windsor style with the sloped sides? 90% of the time, we're cooking for just my wife any myself. The other 10% I'm entertaining. Any other pieces I shouldn't live without? I've got saute' pan, stockpot, French oven, omlette pan and wok covered.
-Joe