BHS ,
I'd start with something less expensive at first for practice , then graduate to a real sweet shooter once you have the basics down . That way , if you decide that it's not for you the cost can be minimal . You can buy a perfectly serviceable xbow , complete with bolts/quiver/scope , for under $150 . I got mine from a catalog for $140 complete with a decent red dot sight .
I didn't realize that it was even legal for me to hunt with it at the time since I don't have any disability , but got a 150# just the same . It does a nice job on the 3-D out back , and hopefully a nice fat doe when our late bow season comes in this weekend .
BTW , a crossbow is far from silent , even with string whiskers . The bolt drop may be "educational" too .