Shigeru Miyamoto recently did an interview with CNN Money, which focused on his interest (or lack thereof) in online gaming.
Miyamoto attributes the philosophical problems, extra costs, hassles, network outages, and system lags as reasons why he is not high on online gaming.
Ultimately, he believes, the excitement surrounding online gaming has been the communication -- a trait the company has long been familiar with.
Check out the interview for an interesting read.