well if you ever do you'll see a few dragons. For starters there's a dragon that actually appears at the beginning of the game and scares the ever living crap outta people. You eventually have to fight him, which i have yet to do, but you'll be able to summon a couple of them for your own purposes.
Had a friend have to fight off 2 of them once cause he accidentally spawned one while another one was near by. Btw if you do play the game beware the wand that changes people, it randomly changes them into dragons, lol.