@Alien 3ds doesn't need to die.
I've had mine for just over a year.
It's not a disposable item that becomes obsolete after a couple of uses. :-/
No, but the 3DS is turning 7 years old 2 weeks from now. It's been around for a long time and its had a great run, but that doesn't mean it'll be around forever.
And getting a console at the end of its lifespan has its benefits! The 3DS already has plenty of great games, so now you can get any of them without having to wait for them to release, and you can probably find most of them at a lower price than normal too!