I'd buy a used bow off ebay..just ask alot of questions.There's plenty of vintage bows that are in great shape..Bear,Pearson,Wing,etc. Ask if the limbs are straight,any major nicks,delaminations,whatever.If you drop $40 on a bow and it's not what you want,you'll get your $40 back out of it. Drop a few hundred on a bow and you decide it's not what you want...you won't get your money back out of it.Think low poundage. #40lb is a fantastic starting weight...your form will definitely thank you down the road.
You also have to decide recurve or longbow. I shoot both but most of my hunting and shooting is with a recurve and most people starting out adapt to the recurve better