Well-reviewed game that's been on the shelves for about 18 months and is marked down: $20.
Time to install game from DVD: about an hour.
Time and effort to apply all the damn patches that are necessary before actually playing: three days, 37 GB of downloads and a net connection that's useless for anything else in the meantime.
...Sigh. I hope I get to play Neverwinter Nights 2 before next Christmas.