Of course, that makes sense!
But I wouldn't diversify more.
What I should to do get an ideal collection ( well, that is really subjective ), is to own the king of each category:
A Vintage: Certainly the Small Egiziano.
A Luminor: The Logo or the MM are hard to beat ( Pre V for both of them, of course ).
A Luminor Marina?: The 36 / 40 are the most appealing, to me; for their rarity and mystery ( Pam 40 ).
A Mare: The Pre V!
A Rad: The Cali or the 3646 ( preferrabily the Vintage ), but if not the 232 / 249.
A Sub: The 64!
And last but not least: The Arktos, which is an hybrid of the Sub and the Luminor Marina, for its history, and because, IMO, this is the most interesting creation in the Vendome Range...
Aaah, Gastby...
I almost forgot...
Huge congrats for the 5218-301/A!
It will make a great duo with your awesome Pam 6!
A Duo I dreamt about, and I was never able to realize!
Best, my friend.
Nicolas