Here's why:
* Condition: Unopened, sealed sets are the most valuable, followed by sets that are complete and in pristine condition. Applying stickers can damage the pieces, especially if done poorly, lowering the overall condition and value.
* Collector's Preference: Many collectors prefer their sets to be "mint" or "new in box" condition. Applied stickers can detract from this ideal.
* Resale Value: Sets that are sealed or have unapplied stickers are more desirable and likely to sell for higher prices on the secondary market.
However, there are exceptions:
* Rare or Vintage Sets: If a stickered set is incredibly rare or vintage, it might have more value, especially if the stickers are original and intact.
* Stickered Sets with Higher Demand: Some specific sets might have a higher demand with stickers applied, especially if the stickers are iconic or integral to the build.
In most cases, it's best to keep the stickers unapplied, especially if you're considering selling the set in the future.
Recommendations:
* Store Stickers Safely: If you do want to apply stickers, keep them in their original packaging and store them carefully to preserve them for possible future sale or use.
* Apply Stickers Carefully: If you decide to apply stickers, do it with care to avoid damaging the pieces. Use a clean surface and apply them with precision.
* Research Your Specific Set: Before deciding whether or not to apply stickers, research the specific set's value and market demand to make the best decision for your individual situation.