Originally posted by SpecialK A prime is not really the definition of a walk-around lens unless you want all your shots to have the same perspective. 35 is about the normal view, but it's a bit short for macros as there is not a lot of working room.
And here we have the ancient "prime vs zoom" debate. There is no way to resolve this, as each type of lens has advantages and disadvantages. Use whatever you like.
Also, a prime lens may give you a fixed angle of view, but that is not the same as perspective, which depends on how close the camera is to the subject. In that regard, the two most important decisions that a photographer makes is where to stand and when to release the shutter.
Rob