It all really depends upon your price range and the area in Middleton you wish to live. MIddleton being named the #1 city in the US by Money Magazine last year has helped it remain strong in resale.
I took a look at a few key numbers this morning. Currently there are 120 homes for sale in the city of Middleton with an average asking price of $473K. In 2007, 145 homes sold which was 53.9% of the entire market with an ave. sale price of $351K. From this you can see that the average price being asked is almost 35% higher than the ave. sale price in 2007. If these seller's receive pricing near what they're asking, the city of Middleton market will truly show it's still outperforming the real estate market as a whole in the greater Madison area.