Has anyone else noticed this but what's up with the stock of the Titan X / 1080Ti water blocks? All the online retailers are sold out of the heatkiller and aquacomputer blocks. (My preference) Is the demand that much higher than the supply? I've never really had this hard of a time getting my preferred water block for a video card. I could technically order from the manufacturer websites over seas but that's a pain if I run into any issues.