Prices aren't down 20-30% - you're referring to average sales price. Big difference. It's been attributed to the sales mix (people opting for condos/townhomes)
Most peoples "social circle" is very, very small. Think about the number of eligible women (or men) within your circle - it can probably be counted on 2 hands. Are you sure you want to limit your selection of something as important as a forever partner?