Used is a good way to go, especially when just starting out. You don't need to spend up to over $200 on something yet.
Normally when you buy used, the balls will be cleaned, resurfaced, and then you would just plug/redrill. Check out the buyer/seller forum for good and bad experiences.
Many of us on here also bought part of our arsenals as used balls. In my case, the used balls I bought are the Hy-Road, Nomad Dagger (discontinued), Infinite Theory (discontinued), 505T (discontinued), Frantic, and the Outlaw (discontinued). The stuff that was discontinued were balls that I knew I matched up well with or wanted to try out. The others were when I didn't want to pay full price.
Also, if you are looking for any potential recommendations on balls or pro shops near you, feel free to ask.