Two refuelling stops is as much as I'd put up with, and as long as they aren't too long. As you say Steve, it gives you a chance to stretch your legs. I'm going to Manila with Saudi in a few weeks, that includes a 3 hour transit in Saudi and a 45 min re-fuel plus drop off and pick up in Hong Kong. Total travelling time is around 20 hours, I can put up with that for a £300 saving over KLM or Emirates.