I have the opposite experience. In fact, I stopped using Priority Mail because regular First Class tends to be at least as fast, generally next day within 100

I have the opposite experience. In fact, I stopped using Priority Mail because regular First Class tends to be at least as fast, generally next day within 100 miles or two days almost anywhere within California... for 49 cents. (First Class Mail package is a little over $2 for 2 ounces.)