That's really sad. We've taken the plantation tour our last two trips to Maui and it was the highlight of the trip for our kids both times. A fresh level 5 Maui Gold pineapple, cored, sliced, and cooled in the fridge for a few hours in it's own juice, is one of the most unbelievable tastes in the world. Once they reach that ripeness on the vine they can no longer be picked/packed/shipped/etc, so this taste will never be available again.
I guess it was an economic inevitability, but still very sad.