should i upgrade

i have a mcintosh mx132 pre amp tuner mated to a mcintosh mc602 power amp which i use only as a 2 chanell setup. i have 4 bose 901 series 2 speakers which i have hanging from the ceiling because i have a small living room. i have my tv connected to my system. i only use my system once a week for my tv and one classic fm rock station. i have posted before and all say i should update to more 'current' speakers! if i buy floor standing speakers i only have room for 2. i'm not picky about sound. there's many better speakers out there but if one has'nt heard them then they don't know what their missing. that's where i stand. in my situation, would it be a waste of money to buy better speakers? i think so but what do others out there think???