I was thinking the same thing the last few times I went through Targets. Personally, I can't feature the Targets in my area clearancing their GBA stuff any time soon just because they have plenty of space. The whole idea seemed to be that they'd be moving the GBA stuff out in favor of the DS stuff, but that only works if space is limited. When I pop into a Target and see an empty display case between the GBA section and the DS section, I know they've got no reason to move that stuff cheep.
Exactly. The thing is, I can't imagine it's still selling well at this point; the flow of new titles has pretty much stopped and they've had the same kid-oriented games, crappy value titles, and a few good titles (Nintendo and the Final Fantasy games, mainly) in the case since last Christmas. Right now, there really doesn't seem to be a need to clear them out to make space, but I think they're bound to clear them out sooner or later.
Who knows? Maybe we'll have to wait until the fall, when more new games start shipping.
I've also got to wonder if they're going to be getting rid of the last gen games anytime soon. Aside from the endcap Greatest Hits games, my Target stores don't have much of anything left for the GameCube and a mediocre selection at best for the PS2 and Xbox. Even with backwards compatibility, I'd think that the demand for those games would have dropped off as well by now. I can't imagine they'll be cleared out, but I can dream...especially since I still want Mario Strikers and Mario Baseball, and can't afford $30 each right now.