RE: The more expensive the bow the better
It depends on your definition of "Better". For instance, do you think a Lexus is "better" than a Yugo? Do you think Magnus Broadhead is better than a chipped stone?
POINT: They all get the job done, but some are easier, faster, quiter, nicer, etc.
Don't be mistaken though, a $300 kit bow and $700 bare bow are 2 entirely different beasts.