Hi Bruce, I agree with Arlen if your not re-investing your money its seems like a waste to sell your rental. Your making good income on it monthly. Sell your property only if you need the money. As for moving, one of the hardest things to get in a property is a neighborhood you like so I would stay put in your current house.
If you really think about it once you sell your house you will not net that much cash in the bank. Once you pay the realtor to sell it, pay govt taxes etc etc. Maybe about ~200K is it really worth it? I would recommend doing a 1031 exchange instead or better yet hold on to the property till you need the cash. Kids college fund. Property prices are growing in the bay area. I know as I am a realtor in Cupertino and have investments of my own here.
If you would like to meet and discuss this further ping me and we can chat. If you would like to list your property or do a 1031 exchange I can help you with that as well.
-Rita