Well, the problem isnt the time it takes to load segments of the game, its the amount of loads all together that is annoying. For this reason, the city part just sucks for me, each time i get a feel for it again there are 5 loading times to be done before i can continue on with the story etc.
Hence i dont even bother to visit merchants, unless they are out on the street so i dont get another extra 2 loading times.
Once in the game i'll continue playing, but the amount of loading times allways needed just stops me from booting up the game that often. Even though the game kicks serious ***.
I wonder if it really was that necessary to make each house a different loading zone.
Gothic 1 and 2 managed to do it without all the additional loading, a lot of MMORPG's succeed in enterable buildings without extra loading times as well, how come The Witcher cant?