I fight them mostly for the experience (mostly fire and sometimes water, I still find the others somewhat painful). I've only gotten extras of the fire, but a few of those. They don't sell for as much as they used to, but they still sell well enough to give my alts on other servers a nice start (or when I blow all my money on pets as is known to happen
). 1000 gold, which I can still usually get more or less, comes in pretty handy on a new server.