That means there's approximately a 30x markup from raw ABS to a spool of 3D printing filament being sold over the counter in a shop to a consumer. I don't know how much filament costs if you buy industrial quantities rather than consumer ones.

To be honest I don't know enough about industrial pricing to understand if it's ridiculous or not, 30x from raw material to something being retailed at a consumer level doesn't seem unbelievable to me.

Markup on a black ink cartridge (the original comparison) is something in the region of 200x, so nearly an order of magnitude higher.