Real photographers like to imitate film, referring to its look as "realistic". Anything else makes them want to throw up.
Non photographers consider extreme manipulating to be an artistic tool that they like if they like the colors, composition, etc.
Your customer is more likely to be a non photographer than a photographer, so listen to the real photographers when it comes to technique and listen to the non photographers when it comes to style.
|Misty morining by Claudi Lourens|
from My Best Photo of the Week
|Jet and Full Moon by dibilio57|
from Aircraft lights