Since you're announcing it at an heavy traffic like HN it is quite likely there are already 200 companies in ShenZhen reading your post and and planning to sell it for one tenth of what you're asking.
In any case they don’t need to even preemptively copy it once you order it from a Chinese OEM they’ll use the money you paid them to make a few 1000’s units more for themselves and have them on Aliexpress before you even get the first batch shipped.