Can't believe this crap, why buy a switch tester when many geekhackers will pass you theirs for the price of shipping?
Since two way shipping will probably cost the same? It is pricey at $13 though. I know they're probably paying all of $5 or less for the whole thing. It's a tool to sell their keyboards, it makes more sense to have a CM keyboard "pre-order" type deal through MassDrop where you commit to the purchase, they send you a switch tester, then you commit to a switch type by a given date.
That's an excellent idea, perhaps CM will read this. 
Not so long ago I was giving out sample switch sets FOC. I even paid for shipping. Sent out like 10-12 sets that way.
It's not that hard to do if you're out there with several types of switches that are leftover from projects and you decide not to use them. And nobody's saying that you've got to do it for free like I did. Just charge five bucks or something.
I'm out of tactile clickys and clears so not offering free switch samplers anymore, but surely there are people who could do this? Better than paying CM more money for something that you're not actually going to use anyway!