We have intentionally included surround sound systems across various price points on this list, as different households will have different needs and budgets. The most expensive is the Sony HTA9 Home Theater System, which will set you back around $2000 at the time of writing. This isn't small change, but you are paying for the convenience of the system's wireless set-up.
On the other end of things is the Klipsch Black Reference Theater Pack 5.1 Surround Sound System, which, in contrast, costs just over $350. Remember that the Klipsch offering won't work with any smart home devices.