If I were doing this full time, I'd likely go to one. However, I agree with @walesmaven that you should be able to get the cost down.... You ought to be able to get flight costs cut in half by doing them as shops. If you can stay at the same hotel as the conference, you can largely eliminate the need for transportation once there. Plus, the hotel could have a discount for conference attendees. Some folks get roommates, too.
Hard work builds character and homework is good for your soul.