The problem is there are no decent non-smart TVs and no 4K from a major manufacturer at least. So you are forced to eat the "smart" and free to ignore it later.
I know because I was looking for a new bedroom TV around 40" last month. There were 2 1080p options one Sony and one Panasonic, the Sony was better but around £400 mark, the Panasonic was around £300, ended up with 50" Philips 4k HDR smart for £400. The "smart" bit is OKish, but the lack of Plex is a deal-breaker for me, so waiting on the refreshed Fire stick that will support 4K as a final solution.