I can understand your concern about pricing, but let me point out a few things. There is not a wholesale company out there that will be the cheapest on all their products. Some of the products will be the cheapest and some will be higher than the competitors. We have 3 different types of products.
1. Brand New of the latest and greatest model. (these products will bring eyes to your site, but do not have much of a profit margin)
2. Class A Manufacturer Refurbished. (these are factory refurbished, include a warranty, and look like new, these have a really nice profit margin)
3. Brand New Liquidated items. (these are brand new, but they may be the model from a year or years ago, they don't have a lot of competition on eBay, Amazon etc and they have a great profit margin)
Only one company in the world can be the cheapest on any given product, but they will eventually sell out, or people will not want to buy from them for one reason or another. Price is definitely a big player in sales, but its not the only player.