Here's a thought. If Tattooine is such a hole in the wall planet, why do they end up there all the time? I mean, it looks like it's going to be in 5 out of 6 films. Furthermore, the only film it's not in happens to be, at this point, the best film in the series. Coincidence, you be the judge. Let me know what you think.
Of course, an ULTRA Special Edition could fix the whole Tattooine not in ESB thing