How do you know if something is rare in msp?

In MSP (MovieStarPlanet), something is considered rare if it has limited availability or was only released during a specific event or time period. Typically, items that are no longer obtainable in the shop, have been retired, or were part of exclusive promotions are classified as rare. Additionally, player forums, trading communities, and MSP databases can provide insights into the rarity of specific items based on player experiences and market trends. Observing how frequently an item is traded or sold can also indicate its rarity.