If Audiophiles care about sound, then why so few threads on acoustics

... and so many on cables?

I am sure there are 10 if not 50 times more posts on cables too?

I would hope that as audiophiles we could agree that acoustics are far more important than cables. A cable may (or should) make a fraction of a db change. Acoustics can make several db changes (or more).  A cable may have some impact on clarity or soundstage (and many can rightfully debate that). Acoustics absolutely will have an impact on soundstage.

So what is the reason? 

• Is it because acoustics are "hard", i.e. you really have to put some thought into it? 
  
• Are acoustics not sexy enough? 
  
• Is it because they are often unattractive?
• Is it because they carry much in the way of bragging rights (at least with many audiophiles)?
• Do they not provide enough "retail therapy"?
• Most audiophile really don't understand much about acoustics and can't contribute?
• The difference between those who understand acoustics and those that don't is substantial for people are fearful of wading into discussions?

Interested in people's thoughts. People will drop thousands on a cable, $10K on an amp, or turntable, but I don't see anywhere near that spend on acoustics in most cases.