The 135mm focal length is not popular these days, but "in the day" everyone pretty much had a good one in LTM. The Leitz 135/2.8 with goggles is good and cheap. How do you compete with that, how many $2,000 135's could be sold?
On the 180/2.8: The Nikkor-P 180/2.8 is extremely sharp, some rumored that it was an ED lens before Nikon marked them as "Extra Dollars".