3-4 years old and we're getting a 5x on the lower range and a 20x on the higher range.
I don't think this growth will be repeated for SV era sets
But I think there will still be growth.
Even at HALF the Sword and Shield growth, would you be happy with a 3x-10x? 2x-5x?
Some food for thought, let me know what your price predictions are for a Mega evolutions booster box case in 4 years!