I'm glad to announce that the HH Auction Site is now free to use for all HH members. Registering, listing, uploading up to 4 pictures are free, but now there's no longer an end of auction fee, so if the items sell, it's free, too.
However, the upgrades do cost small fees, because they are used to make auctions stand out and if they were free, everyone would use them and the effect would be lost. But listing and selling without upgrades are now completely free.
I hope you will consider trying the Auction Site.