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The cheap $200 ones generally break easily from what I understand. Watch Youtube.
That said, I bought a cheap one from an electronics guy in Milwaukee. He has a neat business where he buys them in bulk, tests them, upgrades the components that usually break, and then sells it for $300 or so with a warranty for a year. Search craigslist in Milwaukee under "plasma cutter."
I have had mine for over a year, and works fine. cuts 1/2 inch steel.
It doesn't feel heavy duty, but for my hobbyist use, works great. He said that repairs, if it blows, are usually around $25.
Bo
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