Good question.
I asked myself the same thing 2 years ago.

I ended up buying a Honda EU-2200i inverter unit. And I love it. It cost a few hundred more than the Chinese copies. But they last forever, and the risk of a bad Chinese unit that dies in the first year (or goes many many years) was not worth it for me. Super low noise, easy start, reliable, etc. Yes expensive.

I have a big, heavy, wheeled, 7500 Watt "portable" generator with a Honda engine. But it is much louder, and more than I need at the track. It is my home back-up generator.

1993 Daytona, 5.50 at 130mph (1/8) 1.19 sixty ft (PG). Link to 572 B1 - Part 1