I am currently considering this also. Were I live we have 1 local school which is a 10 min drive away. So each day drive back & forth I am doing a total of 30kms anyway. Problem is we are beginning to have doubts in the school (well I have for a while & DH is finally catching on to my concerns also). Our main problem is the closest schools are not taking out of area kids (no room) & "closest" is a 30 min drive one way. So we would probably need to go further down the hill to get them in somewhere better. We would move happily back down the hill but finding a place that will have us (7 all up) is the hard bit.
So I might have to suck up the travel & just deal with it. But I really am unsure that our kids will stay at the local school.