Fantasy, if it's really convincing, can't become dated, for the simple reason that it represents a flight into a dimension that lies beyond the reach of time. In this new dimension, whatever it is, nothing corrodes or gets run down at the heel or gets to look ridiculous like, say, the celluloid collar or the bustle.
As quoted in: Frommer's Walt Disney World & Orlando '98 (Wiley, Aug 29, 1997), p. 143