Admittedly until CO started offering SWUs, I only had a vague idea what an upgrade certificate was.

Most of my colleagues have a vague idea of upgrading with miles/copay but had no idea what the GPU/RPUs are used for.

Moreover, they rarely travel outside of work requirements and since works tends to buy J overseas and full Y domestically they never have a need for using certificates for upgrades.

Last year and probably again this year, some of my colleagues will just at some point say, dan1431 do you need any of those travel upgrade thingys as I know you enjoy that stuff.

Dan