All subscription plans currently allow you to leave a deal active (published) for a maximum of 15 days. You can leave it up for less time but not more, however you can "resurrect" a deal by simply creating the same deal but with new start and end dates.
We don't recommend bringing the same deal back over and over as it will effectively be a markdown in the price of your offer.
Better to do short and sexy deals on different items to get people to come into your store, and expose them to your higher-margin products and your superior service. For sexy deals, you can limit how many items or services you give at the low price by choosing a coupon number i.e. the number of people that can redeem the offer.