Last years ballot was only for the "lost" bee sites that the government had previously canned due to "environmental" reasons.
There are always site coming up for hire but you have to basically call them everyday, as when they come up they go real fast.
All the sites i have seen have been in the 60-90 range per year, not much....if you get a good site (though they rarely come up for obvious reasons), plus if some one dies most of the pro-beeks are all over it before it even hits the public space.
the site was just too far away to make it viable (like 100km), i like to check their progress at least every two weeks in spring / summer.
I'm going to need to find another site real soon though i have 22 hives ready to be moved somewhere,
I want to keep them separate from my other 25.