I bought a 2018 mainly because I came across a great end-of-year clearance sale for $6299.00. I would say that it depends on what you weigh. If you are +180 lbs., then the 2018 might be worth the extra $, just because it is sprung for heavier riders. If you are less then 180 lbs. Then the 2017 for $6000.00 sounds like a good deal. The best way to decide is to go ride both bikes and see what you think.