Is setup something that GC (or similar) typically offers as part of a new purchase?
If not, what should I expect to spend?
I bought a new bass a few weeks ago, but after making my decision, had to rush out of the store to get my kids. I now wonder if the action might need to be adjusted.
Your best bet is to have someone you know (that knows what they are doing) show you how to set up your bass and what to look for. IMO everyone has there own likes and dislikes on different set ups such as string height ect. So having someone else set up your bass may or may not be ideal for you.
Its very easy, and makes a world of difference.