I will remember that next time I go and buy a car...forget the modern new BMW car Im going for a clapped out Morris Minor with 120,000 on the clock just so long as its been serviced.
The 50000 hour plane can have the same relability provided its been properly serviced.....case in point! Problems are less likely to occur with new systems. Why on earth would anyone buy new modern planes if it were not the case? They would look for the oldest ones they could find and then maintain them well.
And with the greatest repect our engineers are hardly second 11.