I know I probably risk the wrath of you Paneristi here, but its sometimes better to get an outside perspective of things, here's my opinion coming from someone who isn't a big fan of Panerai.
Now, there is the argument that all PAMs look the same, which to you Paneristi sounds absurd, but the truth is (coming from an outsider) is yes they do to us people who don't know much about them.
Take for example the Luminor line, yes they come in 3 different size variations, and yes they have different functions on the dial, yes they come in sausage or sandwich markers, but the case looks the same....as in, if you see it on someone's wrist sitting on the table next to you, chances are they all look the same and most of them have a generic movement. All of this doesn't really merit the high price that Panerai demands and that is what deters first time buyers.
I was at the Panerai store the other day and saw the 111 since I wanted to see what it is about Panerai that makes it so popular on RWI. It's a base PAM with a generic movement that goes for about the same price as a no date sub or for slightly (about $1k) more you can get a GMT II that both have an in house movement and an SS bracelet and is a watch that holds value much better, any logical person would choose them over the 111 which in my opinion looks no where near as good as say a GMT 2
Actually not many people would agree. Yes, many PAMs look similar but it's the same thing with Rolex for example. At the end, brand is recognizable because of that. When you see Panerai on someone's wrist, there's no doubt it's Panerai and you can't tell that for many brands.
In your example of Luminor line there are many models that look almost the same, let's say 000, 005, 111, 112 have so many things in common but thing about Panerai is in details and it's not that, because of so many similar models, you can't choose the model you want as all are the same. There are just additional options, for example if you want 000 without logo you can get 112 but if you want something completely different there is wide choice of models with different case shapes, materials, dial colors, dial configurations, functions, straps and movements to choose from.
And in what way all case shapes are the same? You have Bettarini case, 1950 case in 44 and 47mm, Radiomir in 42, 45 and 47 with cg or without, Submersible in 44 and 47, Mare Nostrum, Egi...
It's true that gen's are way overpriced, especially the ones with standard 6497 inside and that's why I would never buy gen base PAM, especially when we have so good reps of them. Also PAM 111 is one of my favorite watches and in my opinion it looks so much better than GMTII, it's all about taste, not logic. I wouldn't pay $7k for a watch that I don't like at all and would rather opt for 111 which suits me perfect no matter it's so much overpriced.
However there is also wide choice of models with in-house movement to choose from (which btw looks much better than Rolex in-house movement).
I'm not trying to say I don't like Rolex (I have few myself) and I hated Panerai when I first came here but you have to give them a chance, try few models and I'm pretty sure you'll change your mind.
And pardon my ignorance but I would much rather get this:
with this:
than this:
with this:
Just my $0.02 of course.