For the record, a PH10 has a life expectancy of at least 7 years, figuring 1 index per minute, 2 - 8 hour shifts per day, 6 days per week, 48 weeks per year, with a 50% duty cycle, averaging 138K indexes per annum - PH10's are tested with over 1M indexes and lockups without error, using a 300mm PEL3 and TP2 load. As Paul Harvey says, now you know the rest of the story! Nice thing is, you can get them repaired or replaced, overnight, for far less than one third of the original cost! Not too shabby!