You know, I had a desktop build of a similar vintage (late 2008) until recently. High quality for the time - C2D E8500 with 8GB of RAM, newer SSD and video card.
I said exactly that, "things haven't changed much since then". It ran well and all, and never overtly irritated me.
But the newest round of affordable mid-high end CPUs is a huge upgrade. Same with SSDs, even compared to ones a few years old. It's one of those things you don't really realize how big the difference is until you use them back to back.
I had a Q9300, and than upgraded to some i7 because I needed more slots on the motherboard. I was very surprised by how much quicker the whole system was, even if I was under the same impression, that in the last years things didn't change a lot.
CPUs get faster by around 20% per year, but in 8 years this can get compounded a lot.
I said exactly that, "things haven't changed much since then". It ran well and all, and never overtly irritated me.
But the newest round of affordable mid-high end CPUs is a huge upgrade. Same with SSDs, even compared to ones a few years old. It's one of those things you don't really realize how big the difference is until you use them back to back.
Do it!