The $300,000 is an over-inflated number that is being used to sensationalize this. They did a similar move several years ago and the cost was less than a third of this.
To the actual books though, again these are the types of books being moved to the adult section (not banned) in Fishers.
The one in the lower right where a man is drawn bent over spreading his ass cheeks so you can see his butthole while discussing the joys of anal sex is some high quality content for a 13 year old. "But, but they can see this online..." Agreed and parents have to be vigilant over that. However, that isn't the kind of content you would expect them to see on Nickelodeon because that is deemed a kid space. Yeah, you still have to keep an eye on what kids look at even in those spaces but on things that would be weird to read out loud at a public meeting because they would be viewed as obscene, we should be able to agree that they should be put in a spot where kids are not being directed to go for content that is supposedly appropriate for them.
Kids were able to get hold of nudey mags back in the day, adults were intelligent enough to realize that didn't mean you should stick Playboy on the same shelf as Highlights, unfortunately today's adults (or a sizable portion of them) are stupid.