Genuine question - how is Bing a good investment? Isn't it essentially a non-factor in the search market?

It's a huge guinea pig for .net, windows server, and azure - a perfect example of eating your own dog food.

My guess is the algorithms and infrastructure serve search functions across all of their products. The "search market" is really the "Display advertising" market, and sure, they suck at that because no one goes to bing. But bing isn't worthless.

I've lost trust on them the day they were busted copying results directly from Google (https://www.wired.com/2011/02/bing-copies-google/)