Yes, but only [b:izu8lx1d]if[/b:izu8lx1d].
[i:izu8lx1d]Avatar[/i:izu8lx1d] was cliched, but it wasn't really anymore unoriginal than the original [i:izu8lx1d]Star Wars[/i:izu8lx1d] (which is a very thin remake of [i:izu8lx1d]The Hidden Fortress[/i:izu8lx1d]). The 3D version had a few gimmicks (though not many), but if you watch the 2D version instead it's not really an issue. If you can look past the visuals (which are pretty amazing) there's a pretty good story there, even if it relies on some old tools of the trade.
That said, the clincher for me was the world-building, which was top-notch right from the beginning of the film.