Mothhive said:
They likely expect that they will be able to access all of the PC games like they did with their console of choice (though they likely understand the lack of backwards compatibility at this point). So they won't understand why their (up to) $12,000 machine refuses to play the latest greatest Call of Duty game, and the short answer is, because it doesn't have Windows. So now they have to hire someone to install windows on a Dual Boot partition so they can play all of the games available to them or learn how to work on PC's themselves, and at this point they may as well have gone ahead and learnt enough about PCs to get a decent one to start with that didn't cost them an arm and a leg.
There's an answer to this, and it's called dumping people/money (things Valve has a *lot* of) at WINE, or a fork thereof, and then working to build launch setups for existing games in the catalog to get them to work under that compatibility layer (think the automatic launching of DOSBOX in steam to get certain titles working, except doing it with WINE and having a WINE config included with the game download from Steam.
In other words, I expect we'll see a bunch of titles suddenly gain SteamOS or partial SteamOS support once we're closer to this being a reality, because Valve will setup a launch environment that just makes them work via quietly running WINE or equivalent in the background.