It's $450/month out of pocket (no insurance coverage)
Therefor, there will actually be price competition and we should see pretty cheap prices in the coming years.
I'm not sure exactly why pharmacies are free to compound it independently. I guess whatever patents exist on Ozempic/Wegovy etc aren't sufficient to squash competition.
The $1000/month for Ozempic is purely a name brand markup. I'd guess we'll see prices closer to $100/month for the compounded variants within a few years