Previously, I blogged about "Are We There Yet" with LED fixture economics. I think it's safe to say that it depends on the application. In the news today is Walmart, talking about their first 'All LED' retail store. (Link here) Interestingly, Wal-Mart was able to show 40% energy savings over alternate designs, and considering that Wal-Mart probably runs energy efficient lighting to begin with, we're starting to see significant LED headway in retail over _any_ alternative option.