I have a Mac Pro 5,1 (2.8 quad core) that somebody gave me, and I'm not really sure what to do with it. Just for kicks and to play with it, I removed the RAID card (cause it wasn't needed and wouldn't recognize large drives) and installed an SSD and a fresh install of macOS. It runs fine, but certainly not faster than my late-2015 iMac. I know the Mac Pro has a loyal following, but I'm not a graphic designer or anything like that. Is there any real point in keeping it, or would this maybe be a good time to sell it, before the new 2019 Mac Pro comes out and the prices of the old ones drop? The only use I could see for it would be to give my wife her own Mac, and so moving our Photos library from the shared iMac to this Mac Pro. That would mean buying a new hard drive (our photo library is almost 1TB) and a 4K display. It does have the original video card in it; maybe upgrading that would make it "snappier", too. If I did all this, I guess my concern is that in a year or two it wouldn't be able to run the then-current macOS, which we'd want since she mostly uses the Mac for working with photos so we'd want the latest Photos.app features. What do you guys think? At what point do you stop pumping more money into an old computer and just buy something new? I don't really need a second Mac desktop, but if it were a few years newer I'd probably totally put it to use in our household without a second thought. I think the fear of it becoming obsolete (from the POV of macOS) makes me not want to use it, even though it's a great machine. Thanks for any advice!