Does the cost vary much within the same state?
Extremely! A house in the San Francisco Bay area, can be 3 to 4 times the amount in a town an hour away. Coastal properties basically can generally be viewed the same........an ocean view will cost you.
Areas all differ in prices. Im my town, a 3 bed, two bath house that sold for 100,000 3 years ago, can now go for 200,000. Some towns boom while others have no growth which makes a big difference.
Gumby