Don't know that anyone NEEDS one, but I sure love mine. I like 'em short, long and middle length. (Don't have the 10 or 8 3/8 inch guns)
I know someone said they have never had a bloody hand from shooting one, I have, but it was a .44 special that did it (Model 296 scandium frame).
I have a 2.5, 3, 4, 6 (x2) and a 6.5 inch. They range from July '56 to pre 2012.
I have carried the 2.5 and 3 inch as an off duty gun (qualified with and carry .44 special round) and hunted with the 6 inch Classic Hunter. The 6 inch NC Highway Patrol gun has not been fired and will not be by me. My first is the Pre-29, 6.5 inch and it was that one that began my interest in .44 guns.
.44 guns are so versatile depending upon how they are loaded. They make good self defense guns, good hunting guns and are a hoot to use for target shooting. My only complaint is that I don't reload and the ammo can be pricy.
Here are most of mine.
629-6 Camfour. 2.5 inch, fixed sight
I don't have an individual photo of the next one, so its the top one in the group photo.
629-3, three inch, ported, fixed sight, Lew Horton, Performance Center (one of about 495)
29 (no dash) four inch (came in the blue box)
29-2, NC State Highway Patrol 50th Anniversary Commemorative
Pre Model 29, shipped July, 1956
29-3, Classic Hunter