5 years.
I have a 2011 13" Pro, upgraded to 8GB of RAM, a 128 GB SSD and the original 320GB HDD in the optical bay. I am confident that it will last through the end of my student career (3 years) and I've had it for 18 months now.
But I think I will change when I'll have enough spare cash and the market will offer me hi-res displays, 512GB-1TB SSDs and CPUs-GPUs powerful enough to feel a more than noticeable difference, on a budget of 1000€, more or less. That includes PCs as well.
I have a 2011 13" Pro, upgraded to 8GB of RAM, a 128 GB SSD and the original 320GB HDD in the optical bay. I am confident that it will last through the end of my student career (3 years) and I've had it for 18 months now.
But I think I will change when I'll have enough spare cash and the market will offer me hi-res displays, 512GB-1TB SSDs and CPUs-GPUs powerful enough to feel a more than noticeable difference, on a budget of 1000€, more or less. That includes PCs as well.