I too would like an option to increase waist size. Personally I prefer one character to look as much like me as possible - I'm 32, a little over 6 foot, balding, and weigh about 280 Lbs. The rest of my characters, well unless I'm being social I want to look at something attractive and GW's female models fit that bill quite nicely.
I can sorta get a warrior like that in prophecies - it even has the same general face shape if I had somewhat less body fat (not too far off how I looked in my 20's). The handful of other MMO's I have played let me do it, but then that feature wasn't worth a monthly fee (which was the only thing they ever did that GW doesn't do that I would really like).
It's just not a popular option and I would generally agree their time is better spent elsewhere (though if they did it I wouldn't complain), I have 12 characters and the reality is that only one of mine would be fat and I generally bet that is even on the high side. However, since that would be the one I generally use for social stuff that is one of the most important characters.
*shrug* it would be amusing to have a fat female elementalist, but once the "funny" wore off she would be deleted and replaced with one I would rather have on screen if I am to play for several hours. Heck, if she was just a farming character she may even stay in the lineup - it would be continually amusing to see a small rotund female wade into the middle of a group of some wild monsters and kill them all in a few seconds
