RED HERRING  I never liked extra /opt or /sw hierarchy in addition to /usr/local and at some moment decided to stay away from all ports. This allows me to stay on the bleeding edge of svn.cvs/git and learn few things :-)  
(Version 6.5.5)

RED HERRING   I never use precompiled binaries but try to compile them by myself which allows to add different tools. Lately I was able to compile IM 6.5.5-7 with jbig2 and autotrace

One definitely should not compare CLI of ImageMagick with click interface of Desktop publishing tools as they are different programs used for different tasks. It does not mean that Photoshop cannot do some batch jobs or one can write a GUI using (some) of the features of IM.

There are tasks which simply can have no reasonable GUI except drag-and-drop. Example? autotrace or potrace converting bw bitmap graphics to a vector one. Another? pdfcrop (not part of IM but TeX distribution) which by default crops according to bounding box. There is no controversy CLI vs GUI and depending on the task I use one or another  
(Version 6.5.5)