If you like the bose's sound and convenience there is nothing wrong with it, if you want to step up to something that is a little more work and will sound "better" it is possible...
If you are looking for bang for your buck, then you bought the wrong system, but if you want easy, small, convenient, better than a tv speaker sound with great customer service and a nice trade up program then Bose is great...
$1200 I would go with
VTF2 subwoofer
VTF-2 MK4 Subwoofer $600
cbm170s for your front sound stage
CBM-170 SE High Performance Bookshelf Loudspeaker $500
fluance surrounds
Amazon.com: Fluance AVBP2 Home Theater Bipolar Surround Sound Satellite Speakers: Electronics surrounds aren't very important, they are only effect speakers, you just need something decent, I have used these a couple times and like them $120
and then an avr, they are replaced fairly quickly, with new input styles, codes, ect ect ect... You can get a nice unit for under $200
DENON AVR-1513 5.1ch Home Theater Receiver 3D ready | Accessories4less
That is IMO the best bang for your buck under $1500 setup I have heard, now the bose is going to be easier to setup and use, it is much smaller, and cheaper, but as far as SQ goes, the stuff listed above will be all around better...