Lots of people are making single player sticks - look on ebay, possibly even locally on CL (or the equivalent if you're not in the US) - for around a hundred bucks, that use arcade-grade controls (often Sanwa or Seimitsu). There's also a consumer model I've seen that's made all of plastic that I've been told is pretty decent.
Google 'arcade stick' or 'fight stick'. Also, some folks at BYOAC may be making such things.
Scifi frauds. SF illuminates.
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