I can understand that. Did you have a question for an agent or was this just a statement?
The decision to rent or buy is very personal to each potential buyer. Things to consider 1) how long do you intend to live in San Francisco? 2) Do you have the credit, the down payment and earnings to support a mortgage in this rather expensive city?
I always suggest renting for a short while upon making a move to a new city. That gives you time to adjust, sort your options out, and figure out exactly where you want to buy.
Do a cost analysis of buying vs. renting. Before even consulting a Realtor, I recommend find a good mortgage broker who can help you work the numbers.
All the best to you.