I had a John Deere 310 that was imported from Belgium. Every time I needed a part for it, the counter man couldn't find the serial number listed in his parts source. Often times the parts ordered for the machine wouldn't fit, the North American version was that much different.
Once we established what the problem was, ordering parts became a bit more reliable, but usually resulted in a 2 week waiting period. There also was a hefty shipping fee involved each time.
I wasn't relying on my machine for income, it was mostly for grounds maintainence here at home. I doubt I could afford the lay up time for each repair if I were depending on it for my livelihood.