This deal has ended.
Update: this is up $2 to $21.99, which is still the best deal available. Amazon now has the K'Nex Sawblade Thrill Ride on sale for $24.99
$18.99, the lowest price we could find. This motorized 1555-piece set builds up to an impressive 4.5-feet tall and has received 5 out of 5 from its first reviewer. Compare this price to $60 at Target. Shipping is free with $25 and there's no tax (except KS, ND, NY, WA).