"it's more likely to appeal to people who are currently PC gamers than it is to attract console gamers"
Not quite. If you're a PC gamer you've probably got a decent PC, so why not move your PC to the TV rather than buy a new machine? On the other hand, a hardcore console gamer is probably going to avoid this in favour of an XBox One or PS4. I expect this to find a market in middle ground: people who own a fairly rubbish laptop and maybe a XBox 360 or PS3 (with no intention of upgrading), i.e. casual gamers.
...of course success in that market relies somewhat on the price.