The lesson learned by Japan is something we all need to be wary of:
"Prices were highest in Tokyo's Ginza district in 1989, with choice properties fetching over 100 million yen (approximately $1 million US dollars) per square meter ($93,000 per square foot). Prices were only marginally less in other large business districts of Tokyo. By 2004, prime "A" property in Tokyo's financial districts had slumped to less than 1 percent of its peak, and Tokyo's residential homes were less than a tenth of their peak,"
