Yep, it comes up for sale a bit, just thought I'd throw it out there as it is a good deal when it's on sale.
As far as the blowtorch writeup above, it's true, this thing will scream if you boil w/ it wide open (which you should never do). I open it wide to get to a boil, then turn it waaaaaay down so my wort is simply moving around and not bubbling anymore. I get 4 10 gallon batches per tank.
Also note that the SP10 is too small to hold a keggle, you must retrofit it. My quick fix is I use my bbq grate and rest my keggle on that (over the burner). It is very simple and imho not worth paying $20 extra bucks to move to the sq14 which I think is the same burner on a different stand.
If you want an upgrade to this burner, you should consider the banjo cooker (kab4)