I shouldn't be, but I am surprised this thread is still alive. To me, someone who owns both Leica and non-Leica gear, you can spend a ton of money on almost any system. It all depends on your cup of tea. I have three Leicas and a handful of lenses, and in total none of them cost more than a Mamiya 7 or Hasselbad or any number of other cameras. You can buy a Barnack with a Elmar 50/3.5 for, give or take, $500. Sure, you can also buy a $3000 lens and a rare, black chrome M4 that will set you back another $2000. But that's the buyer's choice. That's not representative of Leicas overall. If you are comparing a Leica body and lens to a, say, Yashica GSN, ok fine, you win. But there are plenty of other lesser rangefinders that sell for way too high and aren't close to the quality of a good Leica.
I don't justify my Leica purchases. I like them, life is short, I'm not bankrupting my family, and oh, did I mention life is short?