Color Fish Finders Question

[Luna Sea 5]

I don't have a color fish finder but I heard that they are much better then the black and white ones.  What is the difference?  I have the garmin and it actually shows a fish shaped symbol and the depth that its at.  How does it get any easier then that.  What does the color finders tell you that others don't.

[Hotrod]

Color gives you a greater screen definition, making fish and structure pop out in different shades of color for easier identification, along with showing a better description of the bottom composition, Not that I think all that is a big deal for me.  My new garmin is in color ( yet to be installed) and it's only the color model because they were out of the black and white.

Hotrod