Most of my keycaps were manufactured in the USA, as far as I know, but I'm not patriotic at all. As much as I love America, it's not perfect, and certainly not God's gift to the world.
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I'm not really worried about the price. If it's right, I'll get another keycap set (I wanted one in Dvorak anyway) If not, I'll pass. It's a pretty simple equation for me. At the end of the month, I have more money then when I started, so it's not a big deal for me.
Also, PBT may be expensive, but it's pretty awesome.