You simply cant appeal to everyone....
I think its amazing that +6 your gear becomes easier now, as it should, it gives a ashot to everyone to have proper gear, and people will always complain and want the cheapest way possible to get everything +10 or everything they want, and just because they will complain about +8, its how it is, you cant have it all in a flash like some people do. And ive noticed specially since new altar and cap came out, people will try to rip off more gold from others simply because they have something people want and take advantage of that because of people's needs. JLike everyone said, its not something the GM's can control, its the community.
Regardless of how easy or hard it is to get SS on altar, your bound to the price people sell them for. If they wanted to sell CLSS for 2k, and everyone did the same, then you could only buy it for that price, unless someone sold it for 800g, iIn the end, its the community that decides the value of the items in the game, and many take advantage of that fact to overprice some items.
A good example is when you see people selling BP vs those giving BP away, the same type.