Yeah never seen a "smartTV" that my old xbox with XBMC could not do better than. Stick a raspberry pi, or better yet an actual PC, and you are laughing*. Bonus with doing an actual PC is the sites/programs think they are running on a PC and will tend to give you full/cheap access rather than the nerfed versions you get on embedded devices.
So yeah my advice is getting a "smart" TV will cost you more then avoid doing it, if for the same money can buy you a better/bigger/shinier TV otherwise then consider that instead. If it comes with a feature you really want (like 3d, though 3d seems to be a passing fad and lots of places are dropping it) then maybe.
They are marginally better than they were 5 years ago, marginally better does not mean anywhere near good though.
You can buy very nice remote controls that plug in via USB and are basically autodetected from there, or if you have something like XBMC you can just control it with your phone/tablet/laptop/anything with a web browser.
*I say that but I suppose some of the streaming services catch up TV might not work so well with the raspberry pi, will work fine with a PC though.