Snatching/winching from a 1200kg towbar

Looking at replacing the tongue style towbar on the Pajero with a hitch receiver - there's two options:

1. 1200kg second hand dirt cheap
2. 2500kg new for ~$500

Is there any reason not to go with the 1200kg version? I'll never tow while I own the vehicle (maybe a rental box trailer!), obviously the stronger bar would be best, but for very occasional use for snatching another vehicle, would the 1200kg be fine?

cheers