There's nothing to explain... I just like the looks. Same way you can't argue about music tastes - it's what I'm drawn to, while others don't like it. When I was using my analog SLRs in the last 25 years I was mostly shooting Ilford XP2 or Kodak BW400, cause of the cheap developing costs in C41 (and because of the nice artifacts B/W films get via that process), and nowadays I'm doing more colors than before. Nobody questions why anyone still shoots in B/W with analog cameras, even if color films have been available for the better part of the 20th century. It's just a matter of taste.