While you may never go to any GTG and be the hi light of the party with a 5146, if you like it you should buy it as opposed to paying 20k more for a perpetual. I have a friend that wears his 5146 daily and he has many watches that would be considered far more collectable. I once asked him why he wears this watch so often, and his reply was "it does everything I need it to do on a daily basis and when I think patek I think of this watch" and I have to agree with him.
good luck if you decide to get a 5146, its a great watch that will stand the test of time.