Microsoft bids $44.6B for Yahoo (2008)
cnet.com
cnet.com
So, if Microsoft would have acquired Yahoo they would have surplus of divisions and similarly talented people & infrastructure; Which would eventually lead to more layoffs and more time wasted consolidating teams, infra, design and resources.
http://fortune.com/2016/09/27/verizons-deafening-silence-on-...
Money is pretty much free in an environment where interest rates are nearly zero. This is true whether you use debt or equity to finance a venture. If my risk-free rate is nearly zero, then I'd be willing to loan you money, or invest my money in your venture, for a fairly slim expected return.