Part of the problem may be the higher line voltage power companies now
deliver. At my place its nominally 123vac and older machines were
designed for 115vac. Some people like the 'hi tap' the transformers in
their pins to get more umph from flipper and slings. Thats bad for
the bulbs. Many EM's have a primary tap on the transformer for
120vac. Try that.
Do agree that new bulbs fail more often than old GE types
but not as bad as some here have experienced.
Steve