Best Buy has the Insignia™ - 65" Class (64.5" Diag.) - LED - 2160p - Smart - 4K Ultra HD TV Roku TV on sale for $699 [bestbuy.com]
If size matters more than picture quality, it seems like a pretty solid deal for a 65" 4K Roku TV.
If picture quality matters more than size, the TCL 55P607 is the best rated TV under $1k.
I haven't confirmed for this Insignia, but Best Buy usually handles the warranties on their house brand stuff in store, making this a reasonably safe purchase. If it craps out within a year, you can just bring it back to the store for a repair or refund.
No camping in lines or fighting the mobs. Just order online and wait for it to show up at your door.