Yahoo only did 3 acquisitions in 2006, for $42m
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Is that the only time a company should be formed? That may be akin to only purchasing shares in long-term growth companies. Sometimes it's in your best interest to just ride the short-term explosion and move on.
It's completely viable to get into something with only a foreseeable immediate market. After a certain point, perhaps the company would be better off taking advantage of the economies of scale. It isn't a problem to be true to yourself and realize early on that an acquisition is the best end-target for your new company.
YC's application asks both "How will you make money?" and "Which companies would be most likely to buy you?" so I was interested in finding out which strategy they're most likely to advocate in practice