This deal has ended.
Update: the deal is dead; this has moved back up to $28. Likely for today only, Amazon has this 405-Piece LEGO Ultimate Building Set on sale for just $19.97, the lowest price available online and nearing the Black Friday mark. This new tub features a great assortment of LEGO bricks and elements, including building plates, mini figures, windows, doors and wheels. Compare it to $28 at Target. Shipping is free for orders over $25 and there's no tax (except KS, KY, ND, NY, WA).