Interesting graph. (although someone needs to be introduced to the concept of a logarithmic scale) I found it particularly intriguing that (as far as I can mak

Interesting graph. (although someone needs to be introduced to the concept of a logarithmic scale) I found it particularly intriguing that (as far as I can make out) at no point in time did Everquest 2 have more subscribers than Everquest, and the same is true for Lineage 2 and Lineage. I wonder if that's one of the reasons Blizzard are continually upgrading the existing game rather than releasing a replacement? As for other software: well, I think a lot of subscription-based and/or web-based software already does this. You don't choose to switch to GMail 2.0, it's just a steady trickle of new stuff. Conventional games on the other hand are very hit-driven - they don't peak after a year or two but within the first few weeks, after which they fall off more or less exponentially. They do release expansions for many games of course, although I think it depends heavily on the game how well that sells. (the famous extreme example is of course Railroad Tycoon 2, where the expansion sold more copies than the base game due to piracy)