To be fair, it's 13 UK pounds per year basically (which just about covers the book and simply proves you own a copy, it's not like this book would be found in your local book store and with ebay or Amazon.co.jp they charge more than this just in shipping from Japan! And they don't give you a translation to go with it that you can actually read.). You'd spend more on a single night out with the misses or getting a decent Chinese takeaway! While yes you've an issue getting money to Ryuki, you can use Western Union Money transfers, they deal in cash and all Ryuki needs to do is go to a local agent to pick it up.
And Edit: Forgot to add paid for Vol 30 from G.A.