While schools may not all need the bells and whistles of corporate webpages, the amount of money spent each year on technology is unfortunate when one takes a look at most school websites. Sure, most are a CMS (content management system), but many have decade-old technology behind the site, and a casual viewer can tell that nobody in the school systems really know how to keep the sites looking new. What's worse, often these schools are roped into long term maintenance contracts with predator companies that look to sign schools up and never update the sites.
Using an Open Source CMS with a qualified web designer can save schools tons of money in the long run. Do not allow your district to invest in a system that claims to be able to fix every web problem you have. Most of them are old and no longer updated. You are usually better off going for the mostly free versions of things so that when you part ways, it's easy to maintain yourself.