There are desks that solve the cable management issue by mounting a tray just underneath the tabletop. If it's such a problem for you, a desk like this is proba

There are desks that solve the cable management issue by mounting a tray just underneath the tabletop. If it's such a problem for you, a desk like this is probably worth it. The portability argument I understand though. I regularly move my desktop between two places and having duplicate cables and peripherals for each one has been very convenient. So seeing that, you're actually right, I would need to either buy a probably fairly expensive proprietary cable or always carry the brick; and an integrated PSU would've been more convenient. But in the end whether this tradeoff is worth it comes down to your particular situation, and apparently Apple have decided that in general it is worth it. Personally I also don't think too many people move their desktops around that much. The point about the power brick not showing up on the page I'd chalk up to OCD design, not malice, to be honest. It is at least hinted at because the two pictured cables are different.