I'd say it probably depends on the amount of usage the coffee maker gets. The more one uses it the lifespan will go down.
I make about one pot of coffee everyday and sometimes I don't even make coffee so sometimes the coffee maker doesn't come on.
Mine usually last 4 years. My mom has one that is 15 years old and still working good.
But even 2 years of constant usage isn't a bad lifespan for cheapo coffee maker.