I don't really get the vision behind 1 port, but I don't get the angst either (not buying things is pretty easy).
(I continue to suggest not buying computers with 1 port as a great solution to the problem)
For instance, I often work outside and keep my charger at my desk inside. Sometimes I'll start something, check in on it in 10-15 minutes, see its going to take a while to complete, then go plug the machine in, inside, if it's going to take a while.
Sure, it's not something that can't be overcome (I'm not suggesting it is), but the need to check my battery (and to remember to check my battery) before doing something is an unnecessary inconvenience.
It's almost like I'm saying how wonderful the magsafe connector is for when I trip over the cable, and your response is "well, you don't need that—just don't trip over the cable". Sure, I don't need it, but it's just better with it.
But if I have external storage plugged in (I'm copying a large file), and I need to charge the laptop, then I need to disconnect the drive in order to charge the laptop?
There are countless examples where daisy-chaining these devices becomes very inconvenient.