Well, a fourth reason might be the budget. Multi-platform releases promise a lot of money but also require a huge load a resources and money to make them happen. There's also a substantial risk involved since you have to cover far more technologies and, ideally, try to meet the same street date for all of them.
If you develop for the Wii, well, with the right game you simply have a huge potential audience that only seems set to grow, I think. And you'll be able to keep a rather easy handle on your development time and hence the budget since it's only one platform and one that is, as far as I know, relatively easy to develop for.
Having said that I definitely do agree that it's probably creative reasons for the most part. Or maybe I should say that's what I hope it is.
Well, that depends on how you define the context, I suppose. In my view, the Wii is simply part of this generation of home consoles. That's the context. And that's the context I view games within.
Initially, the graphics didn't actually bother me that much since I was really curious about the new controls. But I honestly feel they've delivered very little of what was originally promised. In a sense, the Wiimotion Plus is a testament to this. As others have pointed out, it's making the Wii do what it was supposed to have been doing on release day.
So I'm really coming from a point of view where I could happily live with the Wii's graphics because of its interesting control scheme to one where the controls really haven't delivered what I had hoped (or the majority of games, whatever way you want to put it) which only serves to make me look more strongly at the rest of the machine. Take away those controls, and there isn't too much left, really.
I will say that, definitely, it's all about the games in the end. But even in that regard I feel the Wii just hasn't delivered. I thought "Super Mario Galaxy" was a terrific game but for me, personally, it's pretty much alone on the Wii.
I've never been a fan of Zelda. And the Wii version did nothing to change that. I thought the new Mario Kart was a real disappointment. I've never been able to understand what people saw in Resident Evil 4. And I'm just not a fan anime-style games and/or JRPGs and the likes.
And that just doesn't leave very much in the way of 'classic' gaming. I enjoyed some of the mini-game titles on the Wii but quickly became fed up, really.
For me, nowadays, the story and the atmosphere are probably the most important things in video and computer games. I just love sitting down and experiencing a good story. And I just feel that the Xbox has much more to offer in that regard AND it is able to deliver it at a much higher level of visual quality.
