Denny, We are in a depressed market right now and the number your looking for is directly related to what the recent condo sales are per month divided by total condo's available. This could change significantly with short sales, foreclosures and owners being more realistic about their condo's value. If you combine this with a reduction in the cost of insurance, taxes and mortgage rates which are all in the process of being reduced. The bargain hunters, investors and speculators will jump back in first buying the premium properties. The number you are looking for could be decreased significantly. What is 34 months with todays activity could be 12 months by the end of the year. The best time to buy is when the inventory is high and not when the market has turned. The seller is less apt to negotiate a favorable deal for a buyer.
I know this is probably more then you were looking for but look at it like the stock market and being able to by Dell or Microsoft at a low you know eventualy you will make your money.