The $1.75 was a pizza shop in PA. The $23 schnitzel sandwich was no better then the $15 ones I used to get from Ess & Bench. (Are they still around?)
At some point you chose to conflate the two. Anyone reading close enough should have asked why you bought a chicken sandwich at a pizza shop…
In any case $1.75 for a can of soda is very reasonable at a kosher pizza shop, especially in PA where I assume there’s less competition for pizza shops than Lakewood, Monsey, or NYC.