A 747 SP parked in the sun can be had for less than a Beech Bonanca: Half a $ mill or so.
Seen many 747s on the way to scrap yard.
A well used -100 may have a cash value of
$2 mill, and the next D check could cost 4 or so.
Flown some of them old birds on their last legs. A bit lose on the controls, a bit smelly and always something to write in the maintenance log.
Just remember: Don't ever love anything that will no love you back.
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Men, this is no drill...