A few weeks ago our oven died and I was so happy that it did. We were fortunate that it decided to sing its last hoorah about a month before our home warranty was up. This allowed us to upgrade our oven to a convection and it was a great decision. I truly have found bliss in convection cooking. I continue to giggle with delight each time I use it at the low temperatures and faster cooking times.
These banana Nutella muffins were baked in 13 minutes at 325!
This ratatouille spent a mere 12 minutes in the oven
Dark chocolate chunk cookies were only 8 minutes at 325 from frozen balls (yes, I forgot the after picture). Let me just say that these cookies were even better that I expected. I thought cooking with a Silpat made fabulous cookies, I didn't know that a convection oven would make them even better!
If your in the market for the new oven I highly suggest consider the additional investment in a convection oven. While I don't know how to calculate it, I know there is going to be an energy savings given that the oven is on for less time at a lower temp.
If I had the room I'd definitely take two.