I've always held the belief that it's always best to attract the core audience first. They are the ones who buy game to game, and are actively engaged in whatever features and aspects a console has. They are the ones most likely to get a subscription to playstation world or whatever. They are also the ones who will take the time to talk about the console to other people or online, since gaming is probably one of their top hobbies, of course they are going to talk about it.
Where as a casual, will drabble in a game or two here and there. We kind of saw some of these issues with Wii's software sales, especially among third parties.
Hardcore gamers support gaming, it's what we do. If you're going to grab anyone, it's best to first focus on us and then have features that appeal to others. I.e, apps - netflix, youtube, mlb.tv, amazin, hulu, psn store, tv, photos, videos, movies - bluray, dvd etc.
You create a good gaming machine, but also convince those who have no interest in gaming that the ps4/xboxnext still come with enough extra crap to deserve a spot in your living room for the appropriate price and everything should follow suit.
I also think we'll start seeing people getting fatigued on the type of gaming experiences tablets bring. I know I am already.