That Amakacin (Baytril) entry looks insanely high, I wonder if it should have been $27.50 for the ten doses, which is in line with the $30 I paid for my snake.
The vitamin A/B/C/Nekton supplements aren't worth it, snakes get everything they need from whole prey.
The culture & sensitivity price is a steal, normally I pay a few hundred for that.
Why were both the cost for the fecal exam and wormer listed? Normally you have a fecal exam done, then you get wormer based on the results after a few days if anything shows up.