In my opinion, it's not worth it. The performance of Black is just 10%-15% better while the price is 1.5 higher. Such "enthusiast" solutions were justified when HDDs were used as the main drive for OS, but now when they're used mostly for secondary storage there is no point in them.
The only significant advantage is warranty, but HDDs are cheap and it will be better to buy a new drive instead of sending broken HDD for replacement with all your data. WD Blue has 3-year warranty anyway.