I'm guessing that there is a lower demand. With the release of skill capes, seeing as there are quite a few that are flashy (that require money), people are skilling. Third age is also another factor. Many high-end stakers and other "richie riches" are buying them to show their status. Construction started this all, and Jagex keeps adding things into the game (on purpose?) to diminish the rare prices. Something has also come up recently - chinchompa ranging. At a 200K and even 300K EXP per hour at level 90+, chinchompas are raising fast with that comes more hunters. This all plays into the little "market game" so, sorry investors. Remember, rares were supposed to just be a little bit of fun that should be worth 25K-100Kea. Apparently that's not the case now, so I hope that helped. :-#