NO WORRIES HERE!
With all the stuff I have acquired in the last thirty years, I am the one who is most likely to fail, it would be impossible to wear out or get tired of all the rolling stock I have . Engines , if I had one or two a year fail , I would have more trouble , making it to the train room before I ran out! Bottom line don't worry about trains that might break, HAVE FUN NOW BECAUSE YOU MIGHT BREAK ! and the trains will still be there.
LIFE IS SHORT MAKE THE MOST OF IT AND ALLWAYS EAT YOUR DESERT BEFORE YOUR MEAL! TECHMAN