Interestingly, computers have allowed me to pursue collecting in a manner that doesn't take up much space at all. I have all the Wordstar-format personal and business letters created on my first IBM compatible in 1986. (Did I burn those on a CD yet?) Sometimes the data isn't even accessible in a readable format. (I don't think the current version of Excel can read my old VisiCalc spreadsheets but DOS Lotus 1-2-3 used to.)
In many cases, information for its own sake is worth keeping. I could have erased this file of Top-40 Songs: 1975-79 Arranged by 1st Date Charted. This must have been used when I produced a 6-CD set of music for our 25th high school reunion in 2002. I imagine that this must have been part of my research. Yet why should I press delete and send this to byte heaven? Storage media grows cheaper by the year ... and keeping it has provided me something to post on my blog today!
Half-Megabyte Musical Chart Listing