Do disney park merchandise items increase in value over time?

The provided evidence contains only basic biographical information about Walt Disney himself, including his birth date, career as an animator and film producer, and his achievements such as Academy Awards. There is no information about Disney park merchandise, collectibles, or their potential value appreciation over time. To answer this question accurately, evidence about specific merchandise items, their rarity, demand, and market performance would be required. The biographical information about Walt Disney, while interesting, does not provide any basis for determining the investment value of park merchandise.