I think it just goes to show how unimportant flight sims are in the Steam community. It's really not on the radar at all. Having said that, I don't have any flight sims in Steam since I see no reason to. I'd much rather have separate non-Steam installations of DCS World an Rise of Flight.
The FSX Steam Edition sold very well, reaching the top 3 in sales for that day, albeit at $5. Based on other titles/sales in that position that's probably over 250,000 unit sales in a 24-hour period.
