I'd go with the vision. Only because that Burton is still frighteningly expensive, considering it's used. Besides, Burtons after 1996 are crap (in comparison to pre-96 boards). Either way... a burton doesn't provide any particularly large difference in performance, so it's moot to even think a Burton is better.
No point in spending the extra cash to find out that you suck and you don't want to hurt yourself every time you go down the hill.

I bought my snowboard for $99 NEW
I rule. My bindings were more expensive.
I have to wax my board soon too.
Oh yeah... shit.
If you can, look at both boards, THOROUGHLY. Look for pits and scratches in the bases. If there's spots where the P-tex is missing, walk away. Check the edges too. Rust isn't much of a detail, cause it will come off when sharpened. But if there are serious dents or defects in the metal, you may want to pass as well. Sharpening won't fix those.