you wouldn't use the meat knife on crusty bread but, equally, the serrated knife and straight edge knife aren't going to go through raw meat as quickly
Haven't used one, but they do look a bit naff, don't they? I'm sure they do the job.
Alvin Lee had a straight one on his 335, but it looks like he had to do some routing!http://www.google.com/imgres?imgurl=http://www.alvinlee.de/albigred.jpg&imgrefurl=http://www.alvinlee.de/&h=693&w=520&sz=49&tbnid=uFdWw0-f9ohWgM:&tbnh=139&tbnw=104&prev=/images%3Fq%3Dalvin%2Blee%2Bguitar&zoom=1&usg=__rhfSZ_SUJZmSHn2J8P9cvfZQqwA=&sa=X&ei=GgVzTKdcgoGUB6XoncEO&ved=0CDsQ9QEwBg
It does look like the clearances will be a little tight: