Put the demo video on the main page. Let people can play it immediately because I really don't understand the whole point of the website. Auction with price ne

Put the demo video on the main page. Let people can play it immediately because I really don't understand the whole point of the website. Auction with price negotiation? Sell things in non-auction way? Sell things in Alibaba.com way? Negotiate price in Alibaba.com way? And, how to buy without searching? So, I have to click every category one by one? And, "looking" through all the items instead of "searching" through all the items?