Ok. But then, which Mac would you use as a build server? Mac servers no longer seem to exist, iMacs and Mac Pros are not stackable, you can't build iOS/OSX apps on a standard linux box, and laptops have the same issue as the Mini. That's why a Pro-focused Mac Mini, with even a mid-end desktop CPU and reasonable RAM would be ideal here, and a Mini with a modern laptop CPU would still be a vast improvement of the current situation.