It will be bad if google buys yahoo because that would make google even stronger, that's bad because google already has too much power.
Lets all pool our Paypal money together and buy it for ourselves! Just kidding. I don't think google will buy. They need to compete with each other. We would all get tired of just one big company having it all. When we get tired of using just one thing and something new comes along some of us go to the new guy and try his stuff out. Can you imagine if there is just one big search engine and nothing else?
I'd say Microsoft made a pitiful bid on Yahoo i'd expect it to be worth much more then the 50m they offered for it.
In my opinion, they won't buy Yahoo in the future. Google has it's own problems and I think they don't want to buy another problem which it is Yahoo. They can buy Yahoo if Google's algo will be stable meaning it should be invulnerable that doesn't need to update their algo, which is very very impossible to imagine. Think of it, why would Google bothers to updates it's algorithm regularly??? It's because they don't want any openings or flaws in it's algorithm to be abuse by webmasters.
I believe the reality of that thread is impossible,Google and yahoo means to be Ying and Yang,both of them has to be differ to make the internet balance,and this my faith on them
I would love it if google bought yahoo as long as yahoo serps page were the same as google. I have found it much easier to optimize and get to the front page of google for most of my search terms but on yahoo I am having alot of difficulty.