You should be really look into whether the wireless speakers reproduce high quality sound.
I have yet to find a set of wireless speakers that do not sound "muddy".
I haven't looked in about 3 or 4 years though, so newer technologies might have fixed things. Even Sony's top-of-the-line wireless headphones from a few years ago sounded crappy. (Then again, I hate Sony stuff.)
I've bought/built 4 home theaters in the last 8 years or so, and I'm not a fan of the all-in-one solutions. If you custom pick your components you will absolutely get a better system for a comparable price.
It really comes down though to whether you want something to just listen to, or to rival (and even exceed) what you experience when you go to the movies. I put together a system in my parent's basement last year for about 1200 bucks and it sounds really sweet, ended up being more bang than I expected for the money spent--- that was a receiver and 6 speakers including subwoofer. Once I had it together, I realized I overdid it for what they need, but then again I enjoy it when I visit
The poster above has some good comments, be suspicious of the rated specifications.
Unlike the poster above, I have a huge dislike for Bose products, but all of those other brands are great. I'd add Onkyo to the mix if you want a really good but inexpensive receiver (similar to Yamaha).
If you want to spend some money, move into something from Outlaw, Rotel, or some of the more elite brands. I picked up a Sherwood Newcastle receiver last year to replace my Onkyo and the thing is amazing.. I'll get 10 years of use out of it before I look for something else.
But this is a hockey forum. If you want to get info from some people that really know their stuff, check out
www.hometheaterforum.com.