they have only been out for a couple of months... you expect to see more already?
Specifically i don't expect to see more of them ... neither now nor later ...
since in the interval they jumped from Sata express (none to be seen except the "demo" from the start ) M.2 well we have M.2 SATA and PCIeX since more than some month but still not a lot of them, M.2 NVMe/AHCI well logically not a lot of them tho they are moving to U.2 interface it seems ... so i don't expect to see more of them on M.2 indeed.
A little to bad since i have 2 M.2 slot on my board, one that cripple the SATA layout if used (in X2 X4 and sata mode no difference ) and the other that is more interesting ... it use the bandwidth of the physical X16, X4 wired at the bottom (that no one use most of the time )
i guess i will check on the 950 pricing a little more regularly ... i guess a 128/256gb would not hurt to replace my OCZ Vertex III as OS drive (and recycle the Vertex and Blaze i use as game drive for some)
(and every one of those new interfaces promised wonders and universal adoption ... and ... nope not even remotely true ... tho for the NVMe i give it more time ... but if they only releasy PCIeX card ... then nope )