Originally Posted by Maylander
The problem with exploration in BG1, and probably the reason why they call it tedious, is the fact that each map usually only has 1-2 places worth visiting (edit: As DeepO has already mentioned). Once you've played through the game a few times, BG1 is suddenly a 20 hour game because so many locations are completely useless. Killing a billion kobolds for the umpteenth time is neither challenging nor entertaining.
That being said, BG2 could've used a bit more exploration, so somewhere in the middle is probably a good place to land.