I am in complete agreement with you.
It is because it is a Patek thus the hype!. Both Omegas (Speedmasters) and Pateks use these Lemenia movements and so did some others. (if I am not mistaken Roger Dubuis as well). Whilst Omegas speedmaster range including the Mission series have been using the Cal 321,861,862 863 have faired well . the one that takes the cake is Patek.
Why? bec it is a Patek! Its presence , its world wide accalimed, its long history and of cousre with lots of hype through the net.!
Henry