Mine gets warm along the top, but I never touch it (except for now of course) so what's the problem?
I have two 30" ACD's in my room and I can tell you they change the temp a lot more than "ever so slightly"...Mine is < 4 weeks old and yes, it gets hot. I actually believe it changes the temp in my room ever so slightly.
Environmental requirements
Operating temperature: 50° to 95° F
(10° to 35° C)