the real questions you should ask yourself;
1. can my power supply handle putting a 1060 into my system ?
2. Do I have the space to get such a long card into my case
3. Does the artic xtremeIV cooling system really worth the price difference over the MSI Gaming card ?
(ie: what performance increase will I get from it to represent value of cash out of my pocket)
1 and 2 you can answer yourself or post your make and model of PSU
IMHO as for 3, I have not seen an "increased performance" on a video card worth doubling the price of a video card for a water cooling for GPU.