Nate, I wouldnt take the comment personally. In our feild,most of us have tested well water that is ready for bottling, and water that should be sent out as toxic waste. Since you are bathing in it, breathing it (steam and atomization of the water moecules in the shower), etc, a comprehensive test is the first thing that comes to most of our minds when it comes to a new house that is not on a municipal supply. Municapalities are required to do extensive testing and to make these tests available to their customers. Wells are somewhat unregulated. Many states now require proper water testing be done prior to the sale of a house. Considering the equipment that was there, you could have a simple, or serious problem. Without a proper water test, the liability is simply to great for most companies to make a recommendation. A simple example would be if you have a very low pH, and you have copper plumbing, you could destroy your plumbing in a matter of a few months due to the lack of proper water treatment.
Try to budget for a proper water test to see if your water is safe for you or your plumbing. There are indicators that can clue you off, (blue-green staining in the sink may indicate a low pH) etc, but many contaminants have no odor, taste, or appearance. This is not an acceptable method since all water supplies, aquifers, levels etc will have some variances, but you might try calling the local water treatment dealer and ask him if he knows of any regional problems that are common. They may even offer some fairly decent testing for a minimal charge. of course they will also want to sell you the solution, but it may be worth the phone call.
Hope this helps.