I'm far less worried about raw performance, as I am in the workflow and software availability in general. I need to see if I can take out a Linux machine where I would take a Windows machine, and not go "darn, I can't do what I need to because I'm not running Windows". (And if I hit "darn, I can't do what I need to because I have an ARM chip", that's not a knock on Linux as an option.)
I can always get a more powerful Linux machine at another time. ;)