Make sure you get one of the professional ones. In fsct when i got the first one, i went to a beauty supply store that caters to hairstylists and barbers, as opposed to going to Walmart. Not sure if it is/was bullshit, but I had heard that Walmart gets lower quality units (not unlike the claims that the TVs sold on Black Friday are poorer quality compared to regular ones). Both of mine were made in US.
Just a heads up, you can buy new blades for fairly cheap. On my old unit I replaced the blades maybe 10 years into owning it. I think because of how the blades are shaped, sharpening them might not really be possible. But I could be wrong.