Since it sounds like you are just getting into this, it may be helpful to know that Nintendo has confirmed that there will be a 2nd version of the device and it is likely to have full backwards compatibility (meaning it will play all of the games from version 1).
The release dates for this device are likely to be announced soon.
So if you can wait, you could either get the newest version or you could get the current version for a big discount.
No issues for me.
Device information