Think about it. just the electricity for the servers and the internet connection fees will be in the hundreds of thousands.
Ads & how high you in the search result ranking Beeing number one search result costs alot Oh random information The german car producer BMW had a argue with google a year ago and google removed them from their search list. You couldnt google BMW for month. Google =/ the Internet
... You can get better than number 1. Its called those sponsored links. Which appear before the number 1 on the list.
or you could spam stuff and make it look releveant. "This is the BMW site, we sell BMW's, BMW cars are cool. We at BMW sell cheap cars, BMW's service is amazing."