Just wondering how far and how long you are willing to drive your LOs to preschool?

I want to send DS to pre-school but some of the ones I've been looking into are more than half an hour away.....at least with the addition of traffic. Seems a little much for just 2-3 hours of class, ya know?

I am a SAHM, which is nice, but with Baby #2 in toll at that time, I wonder how it will be! How far is too far?