The price to performance is not worth paying top money for those high end SSD, you can't really feel the difference based on real world usage. You'll only see the performance difference in various SSD while running benchmark software but this ain't what you're going to use the SSD for right?
Just get a reliable mainstream brand which most bros recommend here and you should be fine.
The reason for that little to no difference is due to the limitation of SATA 3 interface, remove that and replace it with SATA express / pcie interface and add in NVMe I believe things would be rather different.
Unfortunately there isnt any PCIe SSD with NVMe for consumer yet, the nearest one that is coming out soon is the Intel 750 SSD, if you really want the best for the best, that is the SSD u should go (and wait) for.
In case you all wondering for MSRP, the rumored price so far is $660 SGD for the cheapest variant or the 400GB model. That is about $1.50 per GB, u all decide.
