Schools are a live and they can change at any time. Children adapt to different places in a different way so I wouldn't like to leave everything for something that may change or that may prove not to be the right place for my child.
Before we took the decision to send Ds to his current school, we visited the one nearest to us, one that everyone raves about, with "very good" notes all around its ofsted but that never "clicked" for us (perhaps because it was the first school we saw and at the time, with a tiny child we were not even sure what we should be asking).
We were VERY interested in another school that had almost perfect marks, amazing reviews, etc, but definitively out of the catchment and oversubscribed so, chances to get into it without moving houses were practically nil.
And, we visited a private school, with the word Outstanding splatered all around its Ofsted report, whose method we truly believed in but that we were not sure it was the right place for DS after preschool.
18 months afterwards, we realised that first school was the worst place for DS as they have no policy or even a reliable interest to keep a child, as allergic as DS, relatively safe.
2nd school has had a new Ofsted review recently and it is now in special measures, aparently they lost the brilliant headteacher they had just after the previous Ofsted, have spent 3 years without naming another one, so the school has been in decline for quite a while.
3rd school has been fantastic, I am so grateful for all the support DS, and us as parents, have had from them when things have gone wrong. Now, they have just changed headteachers so I expect some changes are in the way. But so far, things seem fine.
So, glad I didn't move house to get to the second one, and I'm definitively not moving any nearer to the third one (miles and miles away), because I enjoy our life as we have it and wouldn't like miss in all the things we currently have around us for something that could change anytime in the near future
Now, if we were restricted on options, and the only one was far from being acceptable (something like dissmal, and children killing each other at break time) I would move house. Otherwise I would just put the extra effort to make up for the deficiencies at school.