What's the reason you want to sell it and replace it with a G710+?
I have a G710+ and like it, even if a lot of people here don't, but I'll also say that it's not the best bang for your buck.
The main reasons to get a G710+ over an other model are:
-You like the Logitech driver/software; I already had a G930 headset and liked the software.
-You are looking for a keyboard with macro keys; I don't use them as much as I first thought I would.
-You like the way it looks; there are much better looking keyboards out there, if you ask me.
-You want Cherry MX Brown switches with preinstalled O-rings; I hated the font on the original keys so a swapped them all out, as soon as I could.
If you can pick two reasons from my list, I'd say go ahead and get it. If not, try looking into some other models