Wow.... that anger.. i totally understand.
I would feel the exact same... Dell's being very lousy on their services.
My suggestion is to not read too much into the package weight that are listed. I have received 3 M1210 (same configs) at different times & all 3 times, the packages are listed at different weights (10.8, 8.7, 13.1) but they all arrive the same (same items).
But mine weighs 18.00 Lbs. Something more is coming, I assume. LOL...