Choya Extra Years and Choya Original Difference

I do enjoy Choya based longdrinks and cocktails a lot.
So I´ve deceided to stock up my own “alcohol inventory” and stumbled upon Choya Original and Choya Extra Years.
The latter is much more pricey and I cant find any information on what exactly the difference in taste is though.

Can someone tell me if the difference is worth the x4-5 price difference?