Wow, I was way off. There's something seriously wrong with that price. It shouldn't be that expensive even with EMS. Is it that expensive because of limited quantity? Have you tried to compare with Tenso and Celga?
About spoilers, I'm the type of person who reads the ending of a book first, and reads tvtropes and wikipedia to sometimes decide if I want to watch/read/play something. So yeah, there was no way I was going to hold off.