On the Postcrossing website someone is advertising to sell you Solar Eclipse stamps for twice the official price. Putting aside how cleverly targeted the ad is. It appears that the post office is leaving money on the table by not trying to get some of the margin on their limited edition and specialty stamps.
I’ve written often in the past about the internet being an existential threat to the post offices around the world. See here.
Not all postage is price sensitive. The USPS should find a way to get some of the margin. Or maybe you should.
BTW Postcrossing is a good way to increase happiness and promote world peace.