Asking a vendor for a reduction in price is bargaining and people do it every day. Be polite; give the reason you need the reduction in price and use the trick of making that vendor think they are getting something back in return. Example: You are carrying a certain item that is costly and it is not selling, but sitting there and both the vendor and you lose money. Ask the vendor for a reasonable reduction in price and explain by doing so you can sell in volume making more money in the long run.