Thanks anyway! Yeah, if they're just BD-Rs it would be very cheap, however actual Blu-ray authoring is horribly expensive, and since I was going thru Chinese manufacturers, it would have already been much cheaper than what's available in the west.
Edit: Just to add, someone on Reddit was listing off all these other box sets like South Park and Sopranos and how many hours they were and how much less they cost than my proposed $250 plan. People just don't understand the production costs of merch from a niche creator. Like sure, if I could guarantee 100,000 sold units, I'd make the sets as cheap as the South Park one too