I was just looking at quite an interesting site that helps you to create profitable websites designed to make money online.  You can get your own online ink cartridge shop for example, without stocking any products yourself.  They supply all the tools and they deals with fulfilling the orders for you: all you need to do is promote your website and take the money! Everything is in place, including a shopping cart and card payment facilities.

You are charged the trade price for the supplies that you sell on your site, and you keep the difference between that and the pice you charge your online customers.  It is your business so you decide exactly where to position your prices.  I know from experience that owners of printers and multifunction devices will stay loyal to the place where they can buy at competitive prices and get good service - that could be at your online Inkjet shop!