Need help deciding on 14 Cadenza

Hey guys new to the forum and need help on making a decision on which Candenza to buy. 1st off I had never heard of these cars until a couple of days ago I was at Carmax looking around and the salesman recommended the Cadenza. So my wife and I checked out a 14 SXL Smokey Blue with 37000 miles on it, price is 20,700. We took it for a drive and was just blown away by the way it drove and all the features it has. I wasnt ready to purchase that day as I wanted to come home and do my research. While searching around I came across another Cadenza Limited near me with 29000 miles for 197000. I haven't seen this one in person but looks really good by the pics, it is the dark grey color, not sure the exact name.

So my question is which is the better deal? 1. The Smokey Blue SXL with 37000 miles for $20700 or 2. The Grey Limited with 29000 miles on it for $19700. From what I can tell the Limited has everything but 19" wheels, passenger cooling seat, couple more features such as lane change and maybe the upgraded leather. Not sure about the leather maybe you guys can answer that. What do you guys think? Also both have clean carfaxes. Looks as if they were leased. Any help greatly appreciated.