I always find it interesting looking at the new market summaries when they come out. These tell you the facts about vacany rates and how businesses are doing in general. They break each building down and give you the facts.

Anyways, here's the latest retail market summary to be released. It's end of 2003. The mid 2004 one should be coming out shortly with updated figures.

http://www.priceedwards.com/files/marketsummaries/2003YERetailSummary.pdf