Travelling from Palm Springs to Grand Canyon in October with two overnight stops planned. Want just to see something of AZ and to take in some small town atmosphere en route. First overnight is in Prescott which is about a 4.5 hour drive (via Quartsite) and from there travelling through Jerome and Sedona with the second overnight in Flagstaff. Leaving PS about 10am and thinking now of dropping by Wickenburg for a quick walk through and a bite to eat before hitting Prescott. Is this a worthwhile stop? How much would it add to our journey time?