Mia i think you have a great approach overall to the way your running your directory and can see how it will continue growing. What you mentioned about keeping your prices affordable too, i think that is great as it keeps the directory open to everyone with an acceptable site, rather than potential submitters feeling closed out, because a review price could be out of their league, so i think that your directory creates a welcoming and non discriminating message to submitters. Everything else that you mentioned are strong points too, i agree and admire it.
Not sure how it goes but http://www.mydirectoryrank.webdirectoryreviews.com/ gets over 1415.15 on average , and seems to be increasing more. Must be awstats glitch though. So how really are u guys saying u get so many hits and blabla information ? @ Mia join the tracking at the site link provided above. We will see how many hits u get in a day on average. Its not accurate but still gives approximate numbers.