Gaming's worst marketing/business decisions?

[Aeolus451]

BasilZero said:

Aeolus451 said:
Nintendo motivating Sony into creating their own home console is probably the grand prize winner.

 

Why is that the worst marketing decision/business decision?

 

Playstation coming into existence enhanced the industry/market.

 

Edit: Oh I see , it was bad for Nintendo xD!

Both of those are true.