How much money are the bow and arrows at Dick's sporting goods?

It depends on what type of bow you wish to get - and what you are willing to "settle for". There are bows designed primarily for the beginner, such as the "Titan" (by Indian Archery) and they cost as little as $30....and there are bows made specifically for only one person, and they can cost as much as $6,000 (some custom-made bows, such those from Mongolia, can take a full year or more to build). And that is usually only for the bow itself.

Add things such as an arrow rest, sights, scopes, counter-weights, etc, and the price goes up.

Normally, the more a bow costs the better its quality is, but that is a generalization. There are, unfortunately, many bows which cost a lot...but are of a low quality. For a more comprehensive idea of the average cost of a bow, visit an archery store, one which specializes in archery.