Electronic Entertainment Design and Research has a new study about retail success as determined from sales numbers November 2005 through June 2007. Among the findings are that online components can double sales and critical success (high average ratings) can translate into huge numbers at retail (to the tune of a 531% increase in gross sales).
Is this the kind of thing that might finally convince Nintendo to expand their online strategy?
Note, the report itself seems to cost almost $10,000 to read but Ars Technica has a breakdown and you can view the Executive Summary for free.