Not if they are bad or few or not a good representation. It is so easy. Get a decent camera and learn to use it. Take some time to take some photos of your listing. Then take an extra couple minutes to set the picture up (I actually saw one, on line, if you looked close you could see a rat) Some web sites restrict your access based on the number of photos. Generally, there are cutoffs at 6, 12, and 20. With more photos getting more exposure. One major company will not even post the listing if there are less than 6 photos. So take time with your photos, take lots and clean them up a little before posting.
Here is a house that there were only two photos posted for several months. Consider, this house sold March 31... snow leaves our area in early February. I also wonder what the inside looked like?
And it is not just more photos but quality. This was done with a cell phone and the agent didnt take the time to get lint off of the lense.