To stage or not to stage.... Take a step back to your child hood when your parents would remind you to "Clean your room". Do you not before entertaining guests clean your home, dusting every nook and cranny, putting away all the Stuff? And oh my, how about scrubbing and making the bathroom sparkle, heaven forbid someone have to use a filthy commode or take a look at what lurks behind the shower curtain!
Staging has perhaps three parts, 1) the cleaning and removal of clutter, 2) and the freshening up painted surfaces, and lastly 3) decorating. Is there value in taking making the effort, I believe so.
If the seller and you do make the effort, do not waste it with poorly taken photos. If you are not good at taking photos, consider posting a request on Craigslist.com for a photography student assist you. In return they get the experience and something to put in their portfolio.