I remember what a wise antique dealer in high end stuff once told me: "Antiques are like stocks. Their prices go up and they go down."
I agree with what has been said in response to your very good question, Tales. Friends of mine in the antique business report that sales of furniture in general have been soft, while sales of small items have been going strong. I think it is significant that many established shows are being cancelled for 2010.
In general, I think the business model for the antiques business is awful. First, the dealer buys the item(s) they think they can sell at a higher price. Right off the bat, it's a lousy model. That model in the real estate market would mean that every real estate agent would have to buy the house they are trying to sell!! Second, the dealer has to use their own money to market the item. Again money out the door with only a hope/prayer that the item will sell.
The model for selling that still has risks - but fewer of them - is the auctioneer's model, or the consignor's model. The auctioneer gets paid part of the price for the item regardless of the price for which it sells, and he only incurs marketing expense out of his own pocket.
I know too many starving antique dealers and too few successful ones.