Can someone PLEASE explain to me why Missy Elliott did her latest video in 3-D??

I turned on the TV the other day when the video was on and I started seeing spots and my eyes rolled back in my head. I had my husband to check and make sure I was OK, then I read online that she did it in 3-D. As in Dumb...Dumb...Dumb. Did anyone think before doing this? Are we, the public, expected to go out and BUY a pair of 3-D glasses just to look at her video? Not bloody likely...