Oh yeah? Who did same day, fedex-overnight-to-and-from warranty work, and on what laptops?
They don't ship the laptop, they send a technician and do the repair on-site. I have personal experience with a Lenovo ThinkPad. Dispatching the technician may have taken one or two business days (I don't remember exactly).
Dell used to do next business day on-site tech visit as standard, and 4-hour for a relatively low surcharge on the purchase price.
That was a long time ago though.
Both Dell and Lenovo/IBM used to have (and still might for all I know) on-site warranty support provided by local licensed technicians.