One further consideration would be the shape and dimensions of the room in question.
I lived in a home for 18 years that was perfect for multi-channel surround sound (once available) and enjoyed it on movies. Found out that it really destroyed recorded music and went back to strictly two-channel for all music.
I now live in a condo for seven years that is almost 60' to the back wall and 25' between walls near the back of my living area. Basically, I have very few walls in my living area, an open design with 16' valuted ceilings. The only possible way to install surround sound would be to have speakers hanging from wires with the various connectors also coming down from the ceiling. That is, if I would have pre-wired as I did our home. I have a loving wife who never denied me any reasonable and many unreasonable purchases when I attempted to be an audiophile. However, wife acceptance of haning speakers in her beautiful condo would have been zero.
I still have a dedicated listening area and also where I work from home in our sun-room. The soundbar was a major improvement over any of the built-in speakers with any of the HDTV's that I have owned. On/Off coordinated with the TV as far as switching. Life is good and the sound is still there, just not surrounding me.
One last comment. My former home had a great room which was also our family and TV viewing room measuring 20' deep by 25' long. It was simple to set up a surround system with 5.1 channels that did produce excellent surround. However, when I moved from my home in 2006, I had progressed from a 25" RCA monitor from 1983 to a 27" Sony monitor from 1991 to a 35" Toshiba Studio Series Monitor in 1996 and finally a 42" Panasonic Plasma in 2005. These were always near the largest screens available at the time, other than projection. One issue that both my wife and I noticed was a sometime disconnect from the giant sound field to the size of the TV. Our system was set up professionally to the THX standards of the time.
I am interested if any of you with less than a dedicated, projection, home theater still notice this?