Yesterday I bought the Hyperx Cloud II.
It cost me 145,000LL at Macrotronics.
(It costs nearly the same at PCandParts because you will have to add VAT and Shipping!)
The Cloud Core is priced at 90,000LL and the stinger is priced at 80,000LL at Macrotronics.
To be honest, and in line with all reviews and facts, all the Cloud series are basically the same in terms of sound quality, earcups used etc...
It differs only in accessories and features (and build in case of the stinger)!
Although I'm a PS4 player, I got the Cloud II, though to be honest with myself, the stinger/core would have made a much more logical choice for me.
I just wanted to see how Virtual Surround 7.1 sounds! (yes it works via a trick on the ps4, although it is advertised to be a PC only feature).
I must say that I noticed a difference! I suppose it's for the best! But it's not day and night and probably not worth it!
I've come by this post which is very helpful:
https://www.reddit.com/r/Headsets/comments/5arkua/difference_between_kingston_hyperx_cloud_core/