Its a paradigm change. At somewhere between 200 and 300 hours it stops being something you "keep up with" and becomes more like self-served video on demand. Its not about watching what you have, its about watching what you want. Its also nice to 'marathon' a series and watch all the episodes in a week or two, so you actually can get some continuity in the story line. Then you've got the holiday and summer 'breaks' to catch up on shows. Sometimes the new episodes of stuff start up again in the fall before we finish watching the series from the year prior. Sort of nice intermediary and not necessarily reliable archival storage medium. On my old 400 hour directivo I had three seasons of football playoffs and superbowls kicking around, along with a dozen or so really good games.