I wouldn't want to take 7 years if possible. I was looking at multi-cultural programs and Penn State was one that had a 7 year average. Since I would be lucky to get into any, I don't want to be fussy, but I remember a student tellling me to be careful of programs that had over 6 years listed, but at the time I was a freshman and wasn't as focused on grad school.
I am going to apply to EdS programs also, but would like the flexibility of a PhD, I would be happy in a school environment, but don't know if that would be the case 10-15 years down the road. It would be nice to know there were options. Getting it later when you are working and starting a family, etc. might be doable but harder.