title_body: What's the difference between the Spektrum DX6 and DX6e?
upvoted_answer: I found this comparison chart in an rcgroups thread. The DX6e and DX6 (G3 in this case) are very similar, but the biggest differences that I could find is that the DX6e doesn't have voice alerts and that it doesn't support wired trainer, which will make it harder to use with for example a simulator on a PC. The DX6e also supports mode 5, where the throttle centers with a spring.
  I see no compelling reason to upgrade from one to the other. If you want to use it with a simulator (which you probably want, at least as a beginner) it is cheaper to just buy a wireless adapter to be able to connect the transmitter to the PC via the wireless trainer link.