I'll definitely be getting the PSP version, but I'm still itching to find out what the major differences are aside from the map thing.Buy it for the platform you'll be likely to play it on, of course! There's no such thing as a "platform more likely to affect SC." Money is money! If you buy it on either platform, it'll make us happy -- and if it's a hit on either platform, that could easily make life easier for us in releasing future games, on ANY platform! There's no reason to assume that buying it on PSP over 3DS will help us more with unrelated game releases -- buying it is buying it, period!