Yup, same reason I stay with United. Their frequent flyer program is insanely flexible. US to Thailand with a week-long stopover in Berlin, flying back out of

Yup, same reason I stay with United. Their frequent flyer program is insanely flexible. US to Thailand with a week-long stopover in Berlin, flying back out of Singapore, in first class? Sure! Though, out of my city I don't have a ton of options, living in a United hub.