If it was that cheap, why would you not go to the best possible school? It'd probably be a lot more competitive, too, since people who aren't quite so sure they want to be lawyers wouldn't lose as much if they decided to try out law school for a little while.
Put it this way -- take my situation, where some schools would be very cheap b/c of scholarships or in-state tuition. Yet, out of my current batch of choices, I will likely choose to attend Boston College -- a much more expensive school. It's a tough choice though, as the cheaper schools are tempting options. But if all schools were the same price -- and that price was low -- I'd go to BC without thinking twice.