We picked up the entire run of the X-Files. All nine seasons and the movie (lacking the second film, but we're not much bothered), for about thirty dollars more than we paid for a single season, back when they first came out.
Nothing else typifies the nineties as much as this show. We watched the first two episodes last night, and it brought back a lot of memories. I look forward to watching the seasons pass, and watching the cellphones shrink as the show goes on.