If you want to spend time in Ashland, your best bet is Ashland Hostel, which has dorm rooms for less than $30 per night. See this link. On the other end of the Rogue Valley, Valley of the Rogue State Park just north of Gold Hill is one of the nicest state parks, where you can have a yurt all to yourself for $36 per night. It’s heated, too. Depending on the time of the year, and day of the week, you can book with short notice online. Check out the park here.