Listing ethics, should I up the price?

[Jennifer Wright]

We are rookies, who just listed our first rental. Only listed on one site, we had almost 15 people submit an application (with background checks and proof of income), and over 50 request a showing, in 24 hours. My question is about wether or not we should remove the listing and up the price. Is that somehow unethical? Following the 1-2% rules, we would be within those parameters to up the price by 200$, which is what we are considering. Or do we wait a year, and then up the price? Its obviously underpriced, but am I being greedy? I feel some sort of guilt about those who applied (they had to pay a fee). What are your thoughts?!