Sounding twice as good or not would be an entirely subjective thing. Certainly depends on personal preference, as well as all the usual suspect variables ( head choice, tuning, style being played, room, etc.).
The quality of materials used in the shells notwithstanding...
The non-subjective angle, IMO, is thenbig difference, and usually manifested in non-sound related aspects:
Quality of finishes
Options available for finishes
Hardware (hoops, lugs, etc.)
What comes 'standard'...memory locks, die cast hoops, other fittings, etc.
All those little extras add up.