Updating freesites?

[AndyS]

After reading through the thread about freesites 1.5 it got me thinking about if updating freesites.

As you can't change the pic/movie content and the look of the site once it is listed the only things you can change are those elements around that.

Do you feel updating would be enough of a plus to SE to make it worth doing?

Would updating just a single page of the four be good enough or do you think updating all four would be worth the extra effort?

Would changing say 3 lines of code out of 30 be seen as a genuine update by google?

I would love to hear people's opinions on this.