I think it is hard to generalize on airfares because all aviation markets are dynamic and change. While flights in the US and to Asia might be a bargain in coach, flights to Europe from the US seem more expensive in recent years. If you are trying to buy a W/V/Q fare to use a GPU, it seems in my experience economy tickets are hitting close to $2k RT, whereas 5 years ago it was half that. It's hard to find a Polaris ticket from the US to Europe for less than $8k if you are sticking to UA, unless you have access to corporate discounts. So I can't imagine $16k as mid range Polaris fare. I think the concept is interesting, nonetheless, but I think it doesn't apply across the UA board...