One way to get comics cheap is to check out second-hand stores or thrift shops. You might find some hidden gems at low prices. Another option is to follow comic conventions or events where vendors offer discounted comics. Also, keep an eye on online marketplaces for auctions or bargain listings.
The cost of manga in Japan is quite diverse. Generally, you can find cheaper options in second-hand stores or during sales. But new releases from well-known authors or popular series tend to be on the higher side.
Check out second-hand bookstores or online marketplaces. You might find used light novels at lower prices. Also, keep an eye on special promotions during holiday seasons.