Another technology left by time

Bose kept on making these kind of speakers systems. Well lets be more specific, I have bought these BOSE AM speakers and they sound good enough, if you compare these speakers to others, they wont give you sound fatigue, but there is always one question that bothers me "what if technology upgraded again. AM 16 has 6 cube speakers system but most of the AM system relies on their bass module. I cant even classify it as a SUB because it does not produce that deep bass only loud punchy bass. I tried calling the attention of BOSE on these but they did not reply to my email. my recommendation is before you buy these system try to see the updated technology first. Now we have an 7.1 system and soon it will be upgraded again, so if you buy these speakers you have to resale it sooner or later because it cant be upgraded besides it can only handle 200watts.