Years ago i started downloading and saving ALL of Clays pinball repair/restoration guides for all the different makes of pins, and i would check for updates regularly (i did that just a couple of months ago). I even printed out some of them for use if i had to go and repair someones pin in their home in case they were needed   and anything i dont have printed out, i have them on my laptop comp if needed. I did the same thing with manuals, especially some Gtb manuals (for my own games mainly) before they were all removed from the web.  

I too think its a shame they are now gone, it was always handy to just jump on the website and look up info, but i would also pay for a disc if i had to. Anyway i will be saving them all onto disc in case something goes wrong with the computer.