sfp+ is clearly cheaper, and less heat/power, but I've got cat5e in the walls and between my house and detached garage, so I've got to use 10g-baseT to get between the garage and the house, and up to my office from the basement. At my two network closet areas, I use sfp+ for servers.
I think my muni fiber install happening this week might have a 10G-baseT handoff, and I've got a port for that open on my switch in the garage. If that works out, that will be neat, but I'll need to upgrade some more stuff to make full use of that.