I don't usually do this but I feel a few excerpts of an IM conversation between myself and a friend, both of us fairly dedicated gamers, kinda covers both sides of the debate :-
Me: "For me it marks the pivotal point where beyond all doubt the main medium for gaming has become smartphones. You could say with the success of Angry Birds et al that it has, but for me because this franchise (Pokemon) started life on dedicated gaming hardware with real controls and has migrated it shows that's where the demand is. And that's depressing. The divide between casual gamers and midcore/hardcore gamers that the Wii did well to bridge widens again."
Him: "I don't believe in a distinction between hardcore and casual gamers. It's all just gamers. The reason Go exists on smartphones is that it literally couldn't exist on any other platform. There's no platform with GPS so nothing else could do it. The funny thing about it is it's make me pick up Ruby and start playing again. I hadn't played in ages. I think some games work better on smartphones, and some only work on smartphones. And if hardcore gamers do exist, they are platform agnostic because it's the game that's important. True casual gamers would just have a console to play games, but a hardcore gamer would strive to play everything. There's no way they'll stop making Pokemon games on consoles because they're insanely profitable. And think how many more 3DS units are going to ship when Sun and Moon drop autumn. It's going to be insane. I've put my pre-order down already because I think it's going to be impossible to get - and I never pre-order games."
Me: "Excellent angle, I agree with pretty much all of that. And yeah, of course this will lead to more sales of the 3DS. Makes me wonder about the Wii U as well, what with Pokken Tournament."
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Basically for me Pokemon Go represents two things I have no interest in at this point - smartphone gaming and augmented reality. But if it stimulates sales of platforms I do love - Wii U and 3DS or the much hyped NX, I guess - then what problem would I have with it? None. In terms of complexity it is VERY smartphone though, by which I mean it you do catagorise it as a game then it's definitely on the casual end, even if you spend hours running around playing it there's not a lot going on in terms of strategy and variety.