And if a tree falls in the woods and there's no one around...
The problem I was referring to with the fountain (bacteria) isn't just in the bowl, where the snake drinks from. You fill a reservoir, the water goes into a dish, then back up a tube, and through the reservoir again (and back into the dish). No matter how much you keep the tray clean, bacteria will work it's way into both the tube and reservoir.
While it might look neat, I can't see anything positive about them.
And for the record, I see my snake drinking all the time. Sometimes twice. That bowl definitely gets gross if I leave it more than a couple days.