Apple has so much cash available, it could do a lot of things. For instance, it could buy Yahoo! ( YHOO) just to compete against Google ( GOOG) in search, and instantly become a worse-case for Google. With an offer of $50 billion and memories of a failed buyout from Microsoft ( MSFT) not too long ago, Yahoo! investors might not be nearly as quick to turn away. Yahoo! owns a significant stake in Alibaba, giving Yahoo! a major presence in China. China is increasingly turning into the most valuable market. At the same time, Google is now in the hardware business creating a collision course for both companies. Buying Yahoo! allows Apple further growth opportunity while bringing the fight to Google. Follow @RobertWeinstein This article was written by an independent contributor, separate from TheStreet's regular news coverage.