Like majority of dropshippers, we will not be able to compete directly against those online superstores like Walmart or Amazon with their cut throat prices. This is because they purchase inventory in extremely large quantity, enabling them to lower their cost through economies of scale.
So instead of trying to run a website that sells everything. You should focus on a niche market, targeting a very specific audience. Make your site appealing to your niche market by giving it a unique feel that caters to your audience.
As an example, instead of selling everything from kitchen ware to computers, build an E-Commerce store that focuses only video games. Or if you want to go even further, only RPG games. Design your website that will be appealing to RPG fanatics. Add a blog to your website where you can post updates of upcoming RPG games and review newly released games. Maybe even include a community discussion board within your storefront so gamers can share and socialize with each other, building a online community around your brand. The idea is to not focus solely on price and mass marketing because it is unlikely you will have a competitive advantage in those areas when competing with online superstores. Instead, focus your time in making your website experience enjoyable to your targeted audience.