A recent trip to England got me thinking about the price I’d be willing to pay for a “five-star” experience. Apparently, for an 8-hour flight, it’s around $500. I flew premium on the outbound leg of my journey, and then experienced a very different vibe on my return trip in economy. Even though there were physical differences between the cabins, it was clear that the real distinction was in the flight crew’s energy and service style. I’m not the only one willing to pay for an upgrade. According ...