I've started to wonder if I'm the only one who isn't understanding the problem in general. The MacBook is fine – the new models are quite expensive, and I'm sure having to carry some dongles could be annoying, but it's a lovely machine and there are obvious reasons and long-term benefits for those choices. I'll definitely consider purchasing one when the next refresh allows the processor and memory options to be bump…
Meanwhile, one guy I know bought a new Windows laptop to replace his flaky older one. On the new computer, audio doesn't work. Programs load slowly (~10 minutes to start up software that takes 10 seconds for me). It turned out the flakiness of the old laptop wasn't its age or power, it was the software. Lots of folks have stories like this. There's still a huge amount of uncertainty in that world.