> > Most people are happy paying moderate prices for 99.9% reliability. Very few people are willing to pay extreme prices for 99.99999% reliability. > Actually

> > Most people are happy paying moderate prices for 99.9% reliability. Very few people are willing to pay extreme prices for 99.99999% reliability. > Actually, 1000dppm (99.9% defective parts per million) is not acceptable except for hobbyists. Exactly: There are many more hobbyists than manufacturers, so most people are content to pay lower prices for lower reliability.