You pay for both the material it's printed on and the quality of the print. But mostly the material.
A 3-foot tall poster can be over $500 if you get top-notch quality and put it behind nice glass and a nice custom frame.
It's hard to tell how large the photo is here, but $80 isn't surprising at all if the material mentioned (Al Dibond) really is nice. I'm not familiar with it.
If you just want the poster on normal poster paper, I'm confident you could find a print shop to do it for $25.
A 3-foot tall poster can be over $500 if you get top-notch quality and put it behind nice glass and a nice custom frame.
It's hard to tell how large the photo is here, but $80 isn't surprising at all if the material mentioned (Al Dibond) really is nice. I'm not familiar with it.
If you just want the poster on normal poster paper, I'm confident you could find a print shop to do it for $25.