Me personally? I don't care about 5G or VR and AR, or really anything you mentioned. For me, mainly smart doorbells and secret webcams, like Nest and stuff. I hate it, and it actually intrudes on my privacy rights, especially those hidden cameras in AirBNBs some people have.
My budget is anywhere from $300 to $750. Nothing too hardcore on the programming side, just Python and same for gaming, just stuff like CSGO, Fallout 4, Metro, Resident Evil 2, etc.