This winner-takes-all view of the market, perpetuated by the cliché of referring to an upstart as a "[market-leading product]-killer" is pervasive as it is unhealthy. No one's product has to kill anyone else's product for a market to evolve.

I tend to think this paranoia and view of the world as winner-take-all traces back to Windows' (and Office's) utter domination, which seems to me quite anomalous in this industry. Most areas of the industry are full of good competitors that each have relative plusses and minuses.