So very true - just had someone ask me to send them the stimuli from an experiment we ran 15 years ago. Not only did it send me down memory lane looking for the stimuli and what my lab was doing 15 years ago, but just the thrill that someone is interested in what I did 15 years ago.
If you ever want to read a paper for free and can't find it otherwise, email the lead author and politely ask for a copy. You will not be bothering the person. You will in fact make their whole entire day. I have had scientists get so excited I asked they sent me everything they ever published.