shiva, you should try playing one!
people have these preconceptions that 7-strings are big scary planks, but when i first got my hands on one it felt like i'd had my brain enlarged; so many new possibilities! even when you are playing fingerstyle stuff, it's really great that any bass note lower than a b can be played a whole octave lower! sorry, i'm raving.
i was originally going for one with a floyd rose, but when i felt all those vibrations go through the guitar (it's strung through the body and has a thru neck) i thought 'this is the one'!
i tried out an ibanez 7string with floyd rose and although it was nice to play, it sounded a bit puny compared with the schechter. pretty hard to find, these schechters, but well worth a look.