What's an average price for a fairly standard hotel/motel room for 2 adults and a child on West Coast?

As far up as Eugene and as far down as San Francisco....

we stayed in a roseburg motel 6 a week ago for $65, it had 2 queen beds. i would say that $85 would probably be the average

Depending on the city a hotel in the area is going to be from $70-$100 a night. At Holiday Inn, I'm pretty sure kids under 12 stay free.