I have the 2014 tournament edition and it was $34 on Amazon when I got it. Works just fine, a bit loud and I bought it to take the bar exam (no wireless anything allowed) which was.... awkward, but oh well.
Saying it will cost $5 is incorrect. You seem to forget there are other costs beside the production cost. That's not average keyboard on the market we are talking about here. That's a gaming keyboard coming with its own bag not some weird packaging.