Earlier quoted context omitted.
1) Latency 2) Developing custom hardware that needs to be attached to dev box 3) No rage when the wifi at the airport sucks 4) etc Even though you don't need lots of power, there's plenty of solid and valid reasons why others might.
Exactly: a few reasons. Moreover 1. latency is low enough that people are playing triple AAA video games on AWS for a $1/hr. https://lg.io/2015/07/05/revised-and-much-faster-run-your-ow... 2. Sure, that's a good reason. It had better be spewing out lots of data, though, or again, you might as well process in the cloud. 3. Being able to access your workstation via airport wifi at all is actually a benefit in this case…
Regarding your number 3. For a lot of this, we are talking about devices like the MacBook Pro line. Not huge workstations.