LEGO 4990 The Rock Raiders HQ is a Rock Raiders set from 1999 valued at $510 for new and sealed sets, up 538% from an original retail price of $79.99. Annual appreciation has averaged 6.19% since release. Used copies are valued between $175 and $228 depending on condition. Secondary market prices for new and sealed sets typically fall between $496 and $562.
LEGO 4990 The Rock Raiders HQ is a Rock Raiders set released in 1999, containing 406 pieces and 4 minifigures. The set builds a subterranean operations base on a specialized raised baseplate with an energy storage area, boulder splitter, rotating laser, crane, and a boulder drop zone. It also includes two vehicles: a four-wheeler and a hovercraft, with docking stations integrated into the base, plus rock elements for drilling and transport. Finished in the theme's teal, yellow, and gray color scheme, it was the largest set in the Rock Raiders lineup.
A new and sealed The Rock Raiders HQ is currently valued at around $510, with annual growth of approximately 4%, which is lower than other Rock Raiders sets. The average used price is $190 for those in good overall condition. The 4 included minifigs account for approximately 11% of the set's total value. New and sealed listings currently range from $500 to $866.