I can see how that makes sense for some folks, but every international flight I've ever taken goes through JFK or SFO. AFAIK both airports merge MPC and GE lines, and MPC doesn't require me to use the kiosk which is technically even faster. The cost also goes up if you fly with family.
But like I said, I have enough CCs that would cover all the fees, so I'd probably maintain it that way making it a moot point.
I was trending toward this mindset, except...
Arrival in JFK last year, there was something wrong with the computers at the entry point. The facility was physically full of people and they were holding everyone, including MPC, in a hallway outside the facility.
But if you had GE, they were letting people jump the line and use the GE line within the facility.
It probably saved me 3+ hours between trying to get into the facility and then navigate the regular line, since they were sending MPC into the (impossibly long) regular line.
So I think of it as (free) insurance in case I encounter something like that again.