Plenty of WiFi boosters available on Amazon for $50 or less.There absolutely is!
And as I said when you read the reviews it is quite concerning.
What I am really looking for is a unit that has just one function, to join my wifi network and provide a wired signal, nothing more.
My bedroom is only about 20 ft from the wifi router on the same floor so no signal boost or access point is required.
The Roku might be a viable option. I assume you have to setup a Roku account etc which is no big deal.