Unless you just have the money to spend, I'd go with a cheap bow starting out. You don't yet know what you like or what you want, and your tastes will evolve as you develop your form and learn more. I wouldn't suggest bouncing from one bow to the next every other week--that's not enough time to learn squat about any bow (other than maybe you really hate it--I can usually tell that within a few shots on the rare occasion it happens), and will hinder you in the long run.

There are plenty of old bows that can be had at a bargain, and will perform with most any on the market--or at least close enough that you won't notice the difference. Old Bear, Pearson, Root, Wing, Shakespeare, etc. etc. etc.