In our case, we just ended up removing everything from the price field, but it's leaving a big gap where the price area has a fixed height (maybe that's a CSS override I implemented).
The current "Price" fields only works assuming that the deal being offered is a fixed price. However, if the offer encompasses menu items that are variably priced as is the case with many restaurants, then "Price" becomes invalid. Case in point -- the restaurant I implemented your plugin for offers 1/3rd off all bottles of wine on Thursdays. Not all bottles are the same price.
Sure, I put all the offer info in the description area, but now I've got no easy way to call it out via CSS and still have the client manage it later down the road. I think options to specify percentage off, and discounts (ex: $5 off) as opposed to just a fixed price would make this plugin infinitely more useful, as well as the ability to turn all three of those off completely if a client wanted. Ok, maybe now I'm just throwing in the kitchen sink. Hell, just should just stick all those features in a premium upgrade instead ;)
Regardless, good job, and thank you for your awesome development work.