It depends. Will all the apps on it regularly be updated? From my personal experience the apps on Smart TV's tend to only get supported for so long or not updated as fast as apps would on a streaming device. For that reason I would keep it as a back up. Since its Amazon it will be more future proof in my opinion.I just recently picked up a Sony 950g Led LCD TV. With all of its on board apps and android set-up do I still need my 4k Amazon Firestick?