Speedmaster Pro for Milgauss GV?

[sierra11b]

Just got my speedmaster pro (3570.50) and love the watch and history behind it, but can't seem to get the Milgauss GV out of my head (old model GV).

Can't really justify an additional watch in the collection as I have promised myself just a rotation of four. Speedmaster is such an icon but part of me feels it's a bit tired and that everyone owns one. The GV on the other hand isn't seen very often, love everything about it when I tried it on, and my collection certainly lacks color (as subtle as the GV is).

What would you do? I suppose I could remake a promise to myself for five in the rotation.