I LOVE My plastic boots. They so rock, they never blister my heels, they always keep my feet warm on those sub-fucking-zero-dinner-plate-fest-in-the-making mornings, they climb just fine for my ability level, yadda yadda yadda.... Koflach Vario's here too, got em on sales cause i have pigymy feet... If I got another pair, I'd probably go with the Lowa's just cause they are lower volume, and a bit more sensitive.
Yes. I have leathers. Nice ones. They still don't stay uber warm like my puffy fluffy down pillow feeling koflach's.
Of course maybe i just have issues with cold feet.