can't imagine i'd ever need 46mp.. so i'd stick to what i have anyway..
I bet you couldn't imagine that you needed 12mp about 10 years ago. The worlds changing buddy, get on the train and hold on tight, or be left behind
Well, even today I can agree that all one ever really needs is 10mp, I rarely ever crop or even print.
But, for speciality purposes like panoramic zoom-in pics, and referencing off of a photo for modeling data, it all makes more resolution very desirable. Of course, if speed and storage aren't greatly sacrificed, then why not, as long as ISO performance, color bit data, and (everyone's favorite) DR are greatly increased as well then awesome!
And if it doesn't cost anymore than a nice new car...