This film has always had an unfair rap. I think if its on I always start to watch it again and get engrossed. Sold for a very reasonable $600. I’m sure the animatronics cost a lot more to produce at the time.
Here is the original listing info
*Bicentennial Man (1999) ANIMATRONIC MASK ON ROBIN WILLIAMS MOVIE BUST*
RARE MOVIE PRODUCTION ANOMATRONIC MASK ON A BUST FROM AN ACTUAL MOLD OF ROBIN WILLIAM’s FACE. FEATURES SOME AMAZING ELECTRONICS WITH SERVOS AND MOTORS. LIFE-SIZE PIECE. THIS IS AN EXCEPTIONALLY RARE FIND. 100% GUARANTEED AUTHENTIC AND ORIGINAL.