This is a good breakdown of what home sellers and buyers each pay for in a transaction. It’s from James Stuart at Chicago Title here in San Francisco, and while these rules are for California, the rules are very similar nationwide. Realtors, escrow officers, and lenders can brief you on your local market details.
Also here’s Stuart’s Buyer & Seller Guide To Title & Escrow. Lots of great primer material in here, written in plain English.