The EliteBook line is the one laptop where seeing inside actually made me want to own it more. (And I did buy one, and it was an excellent machine that served me well for years and would still be decently competitive today.)
Other neat thing: the EliteBooks I was refurbishing tended to be 2007 models—but they came with fully-working UEFI, hidden under a "this is only a prototype implementation" warning. It was fun playing with 64-bit Windows 8 on them; none of the other machines in the shop could make heads or tails of the W8 install discs.
They also tended to come with fingerprint sensors. I got used to unlocking my laptop with my thumb long before TouchID was a thing.