Have you ever bought a photo from another photog to hang on your wall?

I have an Ansel Adams print (Snake River/Tetons).

My favorite shot by him.

Yes

I had a GREAT shot of Travis Barker as my screen saver for a while, that a fellow POTN member was kind enough to give me/let me use.
Several Ansel Adams at home and in my office.
And an amazing shot of my baby girl that was taken by my highschool photo teacher (15 years later). Still learning from him!

And for the Shelby fans here is my prized 100-400 https://photography-on-the.net …t=110978&highli​ght=shelby

I have several images I purchased, one a saw in a publication and contacted the photographer and two I have bought from photographers who taught classes I attended.

Absolutely. I saw some on the internet and bought them and some of the photographers I know personally.

I buy paintings but ironically not photographs. I'm not entirely sure why.

I thought about buying one of Marc Adamus' pieces recently, though, I'm not sure which one.

I haven't, but I have sold a photo to another photographer.

I have. I have a beautiful print of this:
http://www.flickr.com/​photos/callieian/37766​29632/

without the border and title in my hall right now. My photos are all over the house too, but sometimes people just nail a shot so perfectly that I have to have it. And photographers generally give good deals to other photographers!