For normal seller listings where they are still occupying, it is also a good idea to have a stager come in and help them rearrange their furniture and accessories to better show off the home with what they already have.
I think it depends on the appearance of the home. We both know that it doesn't cost to stage a home,it pays. It pays as it will net a profit for your client from the sale of their home and someone will get to become a new home owner - Win-Win situation. Statistics show that home staging produces a great return on investment. So if you strongly feel that your listing needs home staging I say do it. http://www.buyandsellnewhomes.com
Staging can take on many faces......and can include a consultation with recommendations to a full blown complete furnishings intervention. With this said, most of our customers welcome recommendations or possibly a partial staging to minimize these costs.