I can relate to that. Mine just showed up, it really is an insane amount of money! Buyers remorse has set in already, tbh I may well return it.
Definitely the wise thing to do. Feels like could be several months before the drivers are included. I can't see the new first gen M* iMac or 16" MacBook using discrete graphics. The only urgency I can see for Apple to support these cards is to offer Mac Pro upgrades and they likely want control over that first with a new MPX offering.
The prices will drop at some point, it's just pure supply and demand greed from these retailers at the moment.
"There's nothing we can do about the prices" they say, hmm.
eBay is chock full of people flipping these cards. Check this out as well, still live on Amazon!
View attachment 506276