Buying and Selling in this Economy

I am a sales manager at a very large dealership in PA...The economy is having a strong effect on newer cars as well as classic cars...I also enjoy buying and selling 5-10 classic cars a year as a hobby, and of course to make extra cash..I have not bought anything to resell in 4 months due to the market conditions, most reserves are not getting met on ebay.If you can hold onto your car till the market changes would be best, may take a year or longer?