I went in July, and they no longer feed the dragons because it was affecting their behavior, so you no longer get to see them eat.
Since they no longer congregate for food, it’s actually fairly difficult to spot one on Komodo island itself; get a boat to nearby Rinca island instead (part of the same park).

I went through a local travel agent on the ground at Labuan-Bajo in Flores (a good starting point to see the dragons), and I got it down to $100 for a two-day trip (alone on the boat with captain and hand, meals but no entrance fees included). However, the agent just went and got one of his buddies on the dock to take me. If you’ve got a tight budget, I’m sure you could get it for much cheaper by talking directly with the dock folk themselves, as this is a pretty standard trip. The snorkeling along the way in the park is tremendous as well.