The Bay Area’s September home sales and the median sales price both edged up from August to September as home buyers scramble to take advantage of the first time buyer tax credit set to expire at the end of November.  Another reason home prices edged up is that there are less homes on the market as inventory levels are down.  There are even less foreclosed homes on the market.  In Feb. 2009, foreclosures accounted for 52 percent of existing home sales in the Bay Area.  This number has dropped to 33% last month.  Banks are not flooding the market with foreclosures.  When they do come on the market, you’ve got so much demand that it creates a frenzy.  You have investors paying cash for them which makes it hard for anyone financing to get an offer accepted.