Hotel Transylvania (+ UltraViolet Digital Copy) is just $10 right now at Amazon! You get both the DVD plus a digital copy for this price.
Shipping is free on all orders when you spend $25 or free with no minimum if you have Amazon Prime.
Since this is an Amazon deal, the price is subject to change at any time. You'll want to snag it while you can! The price was valid at the time of this posting.