In my opinion, The real question is if you would use the PSP Go or would it just sit in its box/case too.
If you won't use the PSP Go you could try to trade your Zune for something else you want or need that you would actually use..
It is very unlikely that you would ever be able to sell a used Zune 30GB for anywhere near $200 you would be very lucky to get $100.
With that said...
If it was me, I would make that trade because you can do a lot more with the PSP Go than you can with the Zune.
Also, I collect videogame systems, I don't have a PSP Go & would use the PSP Go more than I would a Zune.
Spencer
