You said :
" It seems that people here are more concerned with their rate of return or return on their investment when buying a Patek as opposed to the Lange Purists love of the watches and the genuine warmth and happiness for their fellow Lange Purists when they get a wonderful new watch. It seems that more people here are more concerned with, "which watch do you think will appreciate more and faster, this reference or that reference?" But maybe that is good for Patek - you be the judge. "
I'm sorry but imo this is really BS. There are indeed some people who try to earn something on a watch and maybe you get the feeling that most people try to. But that isn't correct. Take me for example. I'm one of those who own a 5070, you know, the watch with the tiny movement. Anyway when I bought that watch almost 3 years ago the secondhand price was more or less the same as the listprice. So, yes, it kept good value but there was no premium (yet). I bought it because I loved it . In the meanwhile I had a lot of other watches, some of them cheap, others expensive. All of them were sold after months or 1 year. I enjoyed them but they had to go because I wanted another watch(es). The 5070R is probably a watch I will never sell.
Also, keep in mind that Patek had probably thousands of collectors around the world and barely 50 different people post on this Patek forum. If 20% of those 50 are indeed grey market dealers or people who just want to flip it you will get the WRONG impression that Patek enthusiasts are all concerned about value. Besides, where are the real big Patek collectors ? Some of them have 10-20-30 and more chronographs, perpetuals, ... and I thin I've never seen of those guys on forums like these.
And the last thing. Why does't it happen with Lange. This is very, VERY simple to explain. Lange just can't make a sought after watch !!! And believe me, they would love to but right now they just can't. There has imo never been one Lange which had a waiting list. ALL Lange watches can be found at your AD and even when the're new models they can be yours with good discount. If that would ever change - So when Lange creates a new watch in the next years which would be very hard to get and would be sold with a premium, those greymarket dealers and flippers would also appear on the Lange forum. You can bet on it !. So don't blame Patek, Panerai, AP, Rolex that they are more succesfull than Lange, Breguet, VC, ... And please ... definitely don't blame their REAL customers. We're not all flippers