I'm really looking forward to steam os. It will bring down the price of PCs by not needing a licensed windows operating system, improve optimisation of games and give users a gui much more orientated towards end consumers in the home. They already claim 100s of titles run natively on steam os and there will be streaming support for others.
As the operating system becomes established I'm sure many will buy a steam box but that won't make up the majority of the market.
Windows is so utterly awful, destroying much of the performance of PC's with its bloated size and overly complicated processes. A fast lean operating system for x86 would be hugely beneficial to most consumers. I would urge people to support Steam OS because PC gaming will improve because of it. It might take 3-4 years to become established but at the end of that time I doubt there will be many that want to go back to Windows.
It makes no sense to use a business/productivity type operating system for the basis of a gaming system.
