How important to have a catchy header image (or logo)?
I have noticed that some sales pages use catchy fancy well designed image(pictures) or logo, while others just simply put a simple header which just shows the site names or product names or maybe a part of the headline. And some don't even bother putting any header image, just simply starts with the headline.
Are there any differences when it comes to conversion and stuff in general?
Or is it just a matter of what you like?
I know all depends on your specific situation but is there any general research about this? Like which is better with a header image or without or what kind of a header is better?(Catchy pictures or just simply the site/product name)