On the living part: My folks live in Concord and their next door neighbor just moved into assisted living at 95. Her house sold within a week for 700k to a young couple. It's a 3 bed 1 bath single story in Concord with drainage problems, mind you. Lets do the math here shall we: What is the mortgage and taxes(thanks prop13) on a place like? Well, at 4.05%, good credit, and 15% down, it's 2857.80/month just on the loan, then we have taxes at about 729.16/month and ancillary insurance and repair will round us up to about 4k/month (48k/year) on just housing for a 3 bed 1 bath. Since spending about 1/3 of your income on housing is normal, you'd need about 150k/year as a couple to afford the house next to my folk's. You simply cannot get a job out in Concord for that salary, so you need 2 working people at ~75k, which is just out of Concord's range for a young person. The only place you are going to find salary at that price is in the South Bay or the City. So now you have to ride Bart or 680 for an hour each way, putting you at at least 10 hour days. Oh, and the closer you get to SF or the further south you go, the more the houses cost. You can't win.
Mind you, they live next to my folks who pay about 120.00/month for the house since my Dad was a GI and got the house for 70k in the 70's. Same Levit-town style house, 40 fold cost difference. Neighbors with completely different lives.
And they say there isn't a bubble?