Virtually every recording released has had reverberation added to it at some time. It is added to increase apparent size, space, and fullness. Reverb is diffenent than echo, but it is understandable that some pedestians don't know the difference. There was a time when people added reverb units to their home stereos, but it died off pretty quick. There were even reverb units for use in cars.
As everyone has said, don't add a reverb to your stereo. That is, unless you LIKE taking creative license with your music.