Morro Bay has three parks worth mentioning....Morro Bay State Park, Morro Strand RV Park, (NOT State Beach)and Morro Dunes. All are priced around $50/night. Morro Strand State Beach has a 24' limit, so we've never stayed there. If staying at Morro Strand RV Park, pop for the extra wide spaces, they're really worth the extra $$ IMO.
Bakersfield RV Resort is just that. However, it's right downtown with trains, traffic and an annoying PA system from the nearby car dealers. It does have a nice heated pool and they offer massages, for a price of course. There is a restaurant on site that has good food. There's a Camping World within walking distance though.
If you are a train buff, be sure to stop off Hwy 58 towards Tehachapi. A short drive off the main hwy will get you to a lookout over the famous Tehachapi Loop. This engineering feat allows trains to climb up and over the mountain in loop fashion. As the trains climb the engine passes over the rest of the train as it winds up the grade. Only place in the world where that happens. There are about 35-40 trains a day making that pull so there's never a long wait to see it. I've put a link below. Worth seeing....safe travels ...Dennis
Tehachapi Loop