I have never and will never advocate putting hundreds of dollars on a gift card. Do you (and I don’t mean any specific you, just you in general) have any idea how often folks are left w a cancelled/modified trip with much needed funds locked into a gift card you can’t use? Can’t exactly repair the car w a Disney gift card.
if you can afford to have that much money locked up, and you so choose, enjoy. For everyone else, just consider what happens if you can’t go. Or you go but get sick and don’t spend even half? Or have to leave early?
as always, ymmv, but be extremely cautious before hopping on the gc bandwagon