My family wants to vacation in the San Francisco area this summer, so I'm trying to decide on a hotel that will serve as our base camp for our day trips. I know we'll probably visit Santa Cruz's Boardwalk for one day, and also see the usual San Francisco sites (e.g., Golden Gate Bridge, Fisherman's Wharf, etc). We normally stay at the mid-range Hilton or Marriott hotel chains, but I've noticed that hotel prices in general are quite high in San Francisco/San Jose/Santa Clara/etc areas (over $200/night in late June).
Can anyone suggest a good place for my family to stay that is between the sites that I've mentioned, and at a reasonable rate? I'm willing to pay $200-$250/night if the hotel is worth it.