Curious how you're going to compete with Amazon? You're going to need to match or beat it in three areas: 1. Aggressive pricing 2. Wide selection 3. Speedy shipping
Bridge can help you beat amazon with selection. You'll need to offer speedier shipping by either shipping what you have in stock more quickly or by having quicker drop shipping from vendors. In terms of aggressive pricing, you'll have to get used to thinner margins and offering more sales.
What you have that Amazon doesn't is your warm smile and physical store (90% of sales still occur in a physical store).