[Hehe]

I always look airfare as space occupied.

1 business seat takes roughly 3 econ seat space. PE, probably around 1.5 Econ seats.

Thus, the math is if bus price<(3*econ price) or PE<(1.5*econ price), it might be worthwhile depending whether I'm traveling long or short haul.

But generally speaking, I don't find PE worth the price. The PE is marginally better than E for long haul as in I could stretch my legs without worrying hitting the seat in front of me. You don't really get any other perk by traveling in PE. And my physical condition after the long flight, it's really not all that different. In business, otoh, I arrive decently rested for whatever I need to do according to the local time I arrive. So, I will either try to find a cheap business class by taking another connection of whatever or just fly direct in cattle class and get over it.