People are delusional if they think the Wii getting media attention is the sole reason for its success.
None the less, good luck to Sony and MS. Two companies that NEVER successfully market their products to expanding demographics outside the core technology/ adult male market
If other normal third parties believe that slapping the words Party and Sim on any minigame fest is all it takes to compete with Nintendo, then they are about as clueless as Sony and MS will be, in terms of stealing the Wii's expanded market.
“When we make some new announcement and if there is no positive initial reaction from the market, I try to think of it as a good sign because that can be interpreted as people reacting to something groundbreaking. ...if the employees were always minding themselves to do whatever the market is requiring at any moment, and if they were always focusing on something we can sell right now for the short term, it would be very limiting. We are trying to think outside the box.” - Satoru Iwata - This is why corporate multinationals will never truly understand, or risk doing, what Nintendo does.
