It is always worth trying something different like an open house. Agents get lazy and discourge these but after all you are only looking for one buyer and that buyer might come to youe open house.
Don't put a ton of work into the event. Everyone including buyers have a life and people understand that life goes on on so do daily messes.
Make sure your property is on all of the pertainent Internet sites. Go to http://www.point2homes.com to get an idea or what these are. Also you should be in the large regional online newspaper (NOT PRINT) sites. They onlt cost about a dollar a day.
All the best,
To tell the truth open houses only get customers for other homes, if anything they seldom sell the house held open. Location is the important thing in Real Estate and as you say your property is Rural so you have cut down an a large percentage of the purchasers. Your house may be worth a lot construction and landscaping wise but the location is dragging down the desirability. You may have to take bite the bullet and take your losses and move on. I know it is hard to do but is is another casualty of the gas hikes
Marketing well is a him priority. Ask yourself where the buyers come from in your marketplace? Are they starting their search online? Then it is a must to be there. Is your property well photographed? If print advertising is still important in your area, is your home in the highly circulated publications?
At the end of the day, all the marketing in the world won't sell an overpriced listing so make sure you are priced to sell.
Best of luck.