Tcharr: From Radeon 6700 stock to a GTX 1050 TI. Best card for this machine without upping the PSU. I am happy with the results. This will be the last upgrade for this particular box. Next acquisition will be a new system.
My current system is eight years old. :)
PainOfSalvation: I'm with you, still using setup from 2010. (Phenom II X4, 4GB DDR3 and 5770). Hopefully i will finally buy new pc for Black Friday. :p
I built my current rig 6 years ago. I upgraded the gpu in 2015 and then again last year to an RX 580. I added more RAM in 2016. I replaced the cpu cooler in 2017 along with one of the case fans. I replaced my mouse three times, keyboard twice, monitor once.
It's going to last me another several years I believe. The cpu has been wonderful. i5 3750k overclocked to turbo at 4.3gHZ since I installed it. Stable as ever. The SSD I got is only 128 GB, but it is still going strong. Along with a 1TB HDD.
I lost an optical drive and an old HDD. Didn't replace either.
I don't think I'll upgrade any more until I buy a new rig, and that will have to be a few years off. We're having our fifth baby in a couple of weeks (!!), and I have some... ahem... other expenses.
The only thing I might have to do is replace the HDD if it goes out. (I have everything backed up, so wouldn't lose anything, just be a hassle).