Optimus Prime (1,508 pieces) $144 (was $180) See at Lego Pac-Man Arcade (2,651 pieces) $216 (was $270) See at Lego Ferrari F40 Supercar (318 pieces) $18.89 (was $27) See at Lego Jaws (1,503 pieces) $120 (was $150) See at Lego Haunted Mansion (736 pieces) $72 (was $90) See at Lego Lego hosts an annual summer sale for members of its free Insiders program, and this year’s sale is now in full swing, running July 7-12. Insiders can save up to…