I use Poser 5 people at my office,I make 3d representations of buldings and then put people on the top. Poser 5 gives me a great variation for that,and what I like most is that all figures have their own wardrobe! The fact that Daz makes much better models does not mean that poser 5 from itself is not enough for basic needs... The way everyone expands his library depends on his needs. My personal believe is that if you want something first try to make it by yourself,if you can't then search if there is something like you need for free if there is not and your need covers the cost buy it!