As somene who prefers playing Go a lot more than chess, this is true. Games are far too long for most people, I do enjoy having a Go game in the background while I work but patiently sitting for 16 hours for a game to finish is not a great sell even if I love the game.

Well, the Koreans seem to be aware of this, and they are pushing for changes. They play shorter games, and they've recently moved from byo-yomi to Fischer timing (part of the reasoning was that players are trained to play at the very end of their byo-yomi period, so that introduced a minimum of 30 seconds per move - even if the players had decided in the first 4 seconds).