A baguette in my Midwestern city close to as good as a standard Parisian corner store baguette is like $6. You can get some that are "good" but in fact way worse than the real deal for $4-5. Approach the 2 Euro baguette in price and we're talking something that's so much worse it's unrecognizable. Pastries have a similar ~2x markup and are still usually not quite as good as the norm there even at the high end of the price range. IDK what it is that makes decent baked goods so expensive here. We grow all the wheat, FFS. Apparently kinda halfway knowing how to produce a plain-ass croissant that is somewhat reminiscent of an actual croissant is rare and expensive knowledge around here. We flat-out cannot produce affordable baked goods & bread that aren't fairly bad, it seems—simply not-bad is luxury priced here, and you may have to drive a ways to get it.

[EDIT] and this bleeds over into anything requiring bread, like a sandwich. If you buy one out and it's not quite expensive, it will for sure be using pretty bad bread and there'll be a fairly low cap on how good it might be.

[EDIT EDIT] toss in the fact that decent or better cheese is more expensive here, and the sandwich situation is downright dire.