I went the whole hog and put in a 6.1 systems years ago, two towers for the fronts, twin speakers box for the centre,
couple of book shelfs fo the sides and two roof mounted for the rears and massive sub.
At that time it didn't cost much more for the speakers than the bar yours looking at though the yamaha amp
was about $600 on special.
Better sound than the cimenas, all gets back to what you are prepared to spend, if yuo buy a budget
system you'll get budget sound, if you can afford a good quality surround sound setup you'll get many
many years out of it, downside is you need the space for the speakers.