Hey there Elena.. Im assuming you have a new model GE Jazz? Nice well if you are up for rear pads already you must do some serious braking!! hahaha...... The price you were quoted by Honda is for genuine brake pads one 1 hour labour to fit im guessing.. Well you can get pad like you said for about half the cost of genuine but if you do i recommend you get the 'Bendix CT plus' pads as they wear quite similar to the genuine pads from my expriences.. alot of other brands some cheaper some more exxy actually cause the brake discs to wear and dont pull up as well, and if that happens maybe not the next service but in a few services time you will probably be hit up for new discs and pads!! You really dont want that!
Just my 2cents.......hope this helps