For only a $200 difference, I would buy the new gun. Not only do you get the improved barrel, but a FO front sight and the checkered aluminum grips, which are very nice to use. Mine is from 2013 and had those added features when purchased.
With a new gun, you also get new magazines.....no way to know how good those 10 year old mags will work until you try them. If they don't function, a new magazine is $40 from CZ.