What do you plan on doing with it? If it's anything but video games, it's probably cheaper to just buy a newer SFF or Micro tower than try to beef up that.
PC part costs tend to run on a reverse bell curve of sorts. Once it reaches a certain age and supply dries up, prices go up.
We'll see what time permits. I'll try AH, probably WoT, and maybe ATS. Just a few things to pass the time every so often, relax and revisit old times.
Assuming the cancer doesn't get me, I've got 3-5 years before I retire from my "day job." Unless they have a "buyout" that is lucrative, and my wife gets a direct job instead of being contract. We have to have insurance, as long as I'm alive, even being in remission is expensive.
But if all goes decent, I'll probably get caught up and build something new in a year, maybe less. In the mean time, I can score the memory and CPU for less than $125. Maybe under $100. That I can find in the budget. If it runs some games, great. If it doesn't, I save pennies for a while.
I believe I'm going to be okay, I'm healing, my surgeon was happy. I'm waiting on DNA test results, they can find this cancer that way. That's a win. If the last surgery got it all, there's a good chance I'll be fine for a normal life span for my family. That's a huge win.