Search isn't a business. It's just a technology they developed. If Google hadn't found their advertising business, they would have failed. You don't want Googl

Search isn't a business. It's just a technology they developed. If Google hadn't found their advertising business, they would have failed. You don't want Google's search technology because it will make you money. You want it because it has brand value and lots and lots of users that you want to leverage to make money using some other business. Walmart's business is selling merchandise. The fact that they have to be experts at building construction so they can make stores to sell merchandise is just as secondary as Google's search business. Would you rather have Walmart or their real estate?