Trident Royal's with the same timings are going for $250 on Amazon. That's pretty much the only competition, since they're very high end for DDR4. These are completely sold out. I have a pair of Royal's myself in my new build, and frankly, the RGB looks better on the Dominator Plats, because the "crystals" are just cheap plastic and it shows.
Save $50 with a reputable brand and experience near-zero shipping time. Asking $200, OBO. Delivery included.