Liebherr R 9800

"Scoring 83.6 with owners averaging 4.77 from 849 ratings, the Liebherr R 9800 is a landmark Technic achievement that rewards the investment with an unmatched motorized build experience, even as buyers candidly acknowledge the $449.99 price demands a committed LEGO Technic enthusiast to justify."

The Liebherr R 9800 Excavator (42100) earns a BrickScore of 83.6 and its Highly Recommended tier as one of the most ambitious Technic builds LEGO has produced, combining 4,108 pieces, seven motors, two Smart Hubs, and app-controlled functionality into a model that impresses in both build process and finished operation. Reviewers consistently describe it as a 20-hour-plus build that rewards patience with a fully functional, app-driven excavator. Owner ratings of 4.77 from 849 ratings reinforce the critical verdict, though the value-for-money signal of 3.90 out of 5 reflects honest acknowledgment that the $449.99 price is a significant investment.

Where they split: The owner value-for-money score of 3.90 stands out as the one area where buyers show clear hesitation, sitting well below their 4.77 overall rating. Critics and buyers agree the set is excellent; both acknowledge the price is genuinely high. This is a case where satisfaction and value perception diverge without undermining the overall recommendation.