Your comment about the comparison between the PS logo and the GIMP mascot logo, are, well...your opinion. The point I wanted to raise was that a corporation like Adobe obviously spends more time and money on user experience and design as a whole, than the GIMP team (for obvious reasons)
Also, your comment about GIMP not having to go up against commercial competitors is, I'll use your vocab here, "bullshit"
GIMP is the closest competitor to PS. In fact, the greatest threat to a $700 software would no doubt be something that's free and has all the features of the latter. Here in Dubai, Inkscape is popular amongst designers.