> to run it to ASD2 and order the parts at GSX, we take the hardware back and as soon as the parts arrive

The AASP I contacted could not return the hardware until the repair was done, so bringing it in when the parts arrived was impossible. The Apple stores need 1 week for repairs nowadays.

> a reason to get next-day AppleCare support (...) Yes, that exists, just like with Dell and HP

Only for enterprise users, and it sets you back 400 EUR/yr. Dell charges 190 EUR for 3 years (in total). Quite a difference.