by that price trend, i'd expect 64GB stickswould cost $200, a fair bit cheaper than DDR4 64GB kits.
on this note, this can open up some very flexible configurations as it supports DIMM mixing with DDR4.
so you can get a high-speed 2x8GB 4000MT/s DDR4 kit and pair it with a 64GB DCPMM for much lower cost than buying a 64GB 4000MT/s DDR4 kit.
maybe one of these days we'd find a DRAM-DCPMM hybrid sticks that has both speed and capacity at a much lower cost.
trolling an adult is very dangerous, don't try it at home nor at work. you don't want to play tag with a rabid man.