In those sites, we make sure to include the ability to create photo galleries.
At least - photo gallery makes your site more interesting for visitors.
But often - it's just a necessity.
You can get a good reaction visitors (in the form of calls and orders) if the site with a photo gallery will be informative and it will be clearly shown the product or service.
Customers will have the opportunity to get acquainted with the product, if the site is to give all the necessary information.
Key features photo galleries: