Are you too classy for this group? I'm joking.

I can't understand why anyone would add drag if it isn't necessary.

Thanks
Yan

Trailers vs panniers vs bikepacking setups... this is one of those things where no amount of discussion changes anyone's mind. Like disc vs rim or 16 vs 20. If you actually try both, though, you'll have a good basis for a personal decision.

Bike Friday.. their travel bikes are already used, touring, around the globe..

Thanks for the feedback, guys.
Since I have two road bikes and a mountain bike, and don't really need a folding bike at home, I've decided to rent a bike for touring when I'm in Korea.

I plan to check out a few bike shops in both Korea and China, to see what folders are available there (Birdy, Pacific Cycles, Tyrell FSIR). If I see some that I find especially cool, I'll be sure to take pics and post here.