Wealthy areas often rank high for larceny: that's where the criminals find the good stuff to steal! This reminds me of the annual lists of the Most Stolen Cars in America (for example, http://www.cnbc.com/id/42786485/America_s_Most_Stolen_Cars?slide=9) The top cars stolen are usually popular cars like the Camry, Corolla, Accord, and Civic, instead of expensive cars like Lexus and BMW. As the CNBC website states, "What makes them attractive to thieves is that these makes and models are easy to steal and the parts don’t change much from year to year.... As a result, [they are] a popular target for thieves all across America."