Upload & Sell: Off
I recently let my Zenfolio expire after three years. There was nothing really wrong with their product but I was using way less than 2 Gigs and paying $25 for the privilege. If you just want to show your non-professional pictures I recommend Flickr, a freebee if you can stay below their minimum upload requirements.
One thing that I didn't like about Zenfolio was that the copyright notice only worked for the name you chose for your site, which might be fictitious. In my case it was Borderlight, not my birth name that my copyrights were registered under. Thus it was copyrighted as Borderlight on Zenfolio, and there was no way around it. I called them, and they said that's the way they do things and nobody planned to address it.