In response to kreutz.
Hypothetical:
The Pro Graphic Designer is working on a commission that has taken several weeks. She has completed another days worth of work while out and about (the main point of a laptop, portability) someone drops liquid into the unit and it fails.
She could just redo the hours of work she just lost after her last backup (assuming she is someone who backs up religiously), however her deadline is tomorrow morning.
If she is using a true pro device she could drop by a computer repair place. Have them remove the SSD and recover the data. (in the macbook pro the SSD is soldered and even if it wasn’t the T2 chip prevents an external computer from reading it). If she is using the “PRO” device that apple sells she is $@$* out of luck and has to pull an all nighter to redo the work or loose the commission and be out all of the work she has done.
The ability to respond to unexpected situations damage, moisture, internal failure or design fault is what should set a PRO device apart.