I stopped calculating how much down I was after 10 or 12% on my physical bullion, simply because it doesn't matter much for my intentions... The whole reason why I bought any at the prices it has been these past 3-4 years is because I wanted insurance and diversification from the USD. That still stands true today at these lower prices, so I continue to buy a little at a time and let dollar cost averaging do its thing. I never do anything "all at once", so the idea of "getting out" is not even under consideration. I will keep my bullion until I retire and am forced to liquidate because I'm broke, or I'll leave it my heir(s). If it spikes, I will sell the portion necessary to get my money back, and maybe a portion beyond that based on profit margins, but never all of it...
Personally, I will continue to buy a few ounces here and there as discretionary $ allows...especially as the price drops. If time proves that I "over spent", well dang, I made a poor investment time-wise, but I still own it and have at least that little bit of security that I didn't have before...