I don't know if they will last longer, but here there are 3 reasons why the could last longer:
1.) Multiplayer with friends never gets old, an Nintendo is the only company to have compelling local multiplayer games (besides sports games).
2.) Nintendo is the best company when it comes to mixing intuitive and easy-to-learn gameplay mechanics with high quality gameplay and value, this means they will always find a market withing kids and new players, if they find a decent formula to sell themselves.
3.) Nintendo is the only company who still has a strong position in the handeld market and its capable to sustain a console with quality titles even without a strong 3rd party support.







