i share your grief my friend!! i bought a 7 a while back (my first "real" guitar actually) and thought id wind up buying a simlarly specced 6 string aswell and just have the 7 for noodling on, but since then ive yet to pick up a 6 string i like even half as much!!
i was even on holiday and went in a
music store and there was a wall, with loadsa JS's, top of the tree RGs and such, but i only looked at the K-7 cos it had 7 strings! others didnt even get much more than 10 secs looking at from me. you do exactly the same as me playing wise, sometimes never touching the low B but feel reassured that its there! playing a 6 suddenly became akin to climbing a cliff face without your trousers on, just somethin not there that needs to be!!