My main computer is an eMac purchased new at the end of 2004. The built-in CRT monitor died years ago. A larger LCD monitor is plugged into it now. The original mouse quit working too, using a Microsoft mouse now. The scroll wheel was a nice upgrade! I'm typing this on the original 2004 keyboard.
I also have a HP Pavilion dm1 that was given to me that I sometimes use, but I prefer the ancient Mac.
I have a few other computers that were given to me, but they either have issues, or I haven't bothered trying them.
Yes, I need a new Mac.