I don't see this on the official ID Cooling EUR Amazon store page yet, which is ID Cooling's highest-profile, first-party sales channel, and where most of their stuff appears first.
They're also selling the smaller, inferior A610 for €35 on their official page, which makes me think that this $29.99 price is BS. If the manufacturer isn't selling at their MSRP, how do they expect their MSRPs to actually mean anything? This just stinks of a manufacturer making an unreasonably low MSRP to get more favourable reviews, with no intent to actually sell it at that price.
Don't get me wrong, I like ID cooling's stuff and I've bought a lot of it in the past but their prices shot up and that means they're vastly inferior to Thermalright in most of Europe now, and the tiny A610 for €35 ID-cooling's own page, which competes with sub-€20 Thermalright offerings like the Burst Assassin 120 means that the EUR price of this A620 Pro is likely €50 at the very least.
At €50 it's no competition for a €36 Peerless Assassin, end of discussion.
If we see this in Europe at the €35 price point that usually matches a $29 MSRP, then that's great - but all past and present evidence right from the manufacturer's own channels goes against that, so you'll have to forgive my cynicism - it's empirically justified.