“98% of homebuyers who searched for a home on the Internet found photos to be among the most useful features of REALTOR® websites. ”
2008 NAR Profile of Home Buyers & Sellers

Compared to listings with only one photo, those with 21 or more photos generate:

more than triple the number of "Detailed Views,"
more than double the amount of interest, and
double the number of leads.

Views, interest, and leads jumped 20% or more as the number of photos increased from 15 to 16.”
Point2Technologies Inc, 2008 Study