There is an adage in graphic design that goes something like this:
If you want to make something stand out in your design, make it big. If it needs to stand out even more, make it bold. Still not enough? Make it red.
Big and bold and red epitomize the lazy designer because it always works but shows no imagination. Marketing is usually full of big and bold and red.
If you have to shout, then you don't really have the buyer's attention.
"Subtlety is not a virtue of our culture, but it appeals to me and always has."--Robert Redford