printer ink gets expensive... I got an old printer for free with 2 black ink cartridges, once I use up the ink it will be given away.
I'm the only computer literate person in my house as well. They respect my knowledge enough and let me do maintenance and stuff. If it hinders them from using it for long my dad will get a little annoyed though... I don't get blamed for everything that goes wrong. All my parents do is email and internet on their PC. No problems in a long time, they usually go to the same sites with a random site or so that's different. I run an unofficial business selling/rebuilding/fixing PCs. My parents know I know what I am doing. I just hate it when I am fixing something and a (PC illiterate) person is standing behind me asking what I am doing. I don't like to be bothered while working on something and If I sit there and explain what I am doing, they won't understand what I said anyway... Next time that happens I might just tell them something that has nothing to do with computers and they will probably believe me... "The cepter core overheated causing a minor malfunction, I just gotta download a cooling patch and it will be good to go."
Your sister likes the 5 min boot time? I was given a PC once that had no less than a 10 min boot time. I gave up on it after awhile, too long to load stuff. The 80GB HDD was full w/ about 100MB free space...I managed to figure that much out with the slow moving system. Pretty sad what people do with their systems then go and buy a brand new one when all they had to do was a simple reformat. Whatever...I've been given quite a few good systems for free, so it's not a big complaint.
Bought my new build only off the money I made from the PCs I sold.