How to increase sales for my Small Business as well as finding the customers to that will buy?

[Mr Confused]

I have a small business Customizing Sneakers, and we have become very popular on myspace and now I am building up a buzz on Facebook, but my partner and i are not getting consistent sales. Our Custom Sneakers start at $200 and up. I have passed out tons of fliers but to no avail it seems to get very little customers if any to buy. Although we are going through Economic hardships I have sold to a lot of people already. My thing is I would like to keep up our sales. The average customer that actually buys our Customized Sneakers from us can Barely afford it and most times they probably regret it later all at the cost of looking fresh. Then I get Customers that will spend because they appreciate the time and effort put into the Custom Sneakers. And we constantly get guys trying to low-ball our prices and im getting a little frustrated. I appreciate any help or advice.