There is a famous saying “First impression is last impression” and same thing does apply on any business site. If you have a attractive website surely it will entice your online visitors. Visitor will come again & again towards the site and you may get more & more revenue. It is truth that if you have an informative website, informative contents but doesn’t have delighting look, visitors will not stay for a long time, they will move to find another website.
So if you want to get more money or revenue from your online website I would strongly suggest you first give an enticing shape to your website and then promote it.
Do correct me if I am wrong.