Yes - Ingles is highway robbery! The prices always go up whenever there is influx of tourists. The tourists go there to buy there food for camping etc.. Try IGA instead, not fancy, limited selection but the prices are better. A Super Wal-mart is being built and should be open by the summer that will give Ingles competitition. I usually buy most of my groceries at Sams or BJs and then just pick up odd and ends at the IGA.
As far as volunteering opportunities, there are several within the county. Check out
Stepping Stone Farm, Inc. this may be what you are looking for, or contact them and they may be able to put in touch with other folks that would welcome your assistance.
Not sure of the area that you are moving from, but if you have been to Cleveland, you know we are rural and may not have all the amenities that you are used to. But it is a beautiful place to live, as I am able to enjoy beautiful breathtaking mountain views everyday.