I have bought a few pairs of Christians, Jimmy Choos and Prada for girlfriends past all sexy shoes, but the Christians could not be worn outside until she had been fucked in them.
To preserve the red sole there is a company that makes a rubber attachment that is red and blends well. Expensive as all hell though for a piece of rubber.
For the longest time I have been dreaming and drooling over red bottoms. I have officially put them on my radar of things I will be purchasing for myself sometime soon! I would probably own a pair by now if there was a store that sold th around here. I went to Saks in Tulsa, no luck. :/
Newer style, Marchavekel. They're actually very comfortable. I find the So Kates extremely uncomfortable but many of the other styles are much more wearable.
LB's are comfortable if you purchase the correct pair, make sure you try them on to find the perfect fit as it may vary with styles and if you're going to wear stockings, bring them with you for maximum comfort