thats a pretty good value, you have to think about it like this, you can run jelly king (all the levels) about 9 times and have a Antigua -- Then only ~14k and 400 CE to upgrade -- so its only something really stupid people or people with more money than sense will purchace, 10k CE is quite a bit, your lookin at 500,000 basically...

BUT ive heard of people paying more on the AH... so its all about your level of greed, honestly i think i would take the 10k CE but thats cause i would worry that he may change his mind and noone else would want it, its really hard to believe someone would be so stupid to pay for it rather than aquire it (you want to play the game or spend moeny on gear? just makes no sense)

so yea, have to decide if its worth it to you or if you wanan be greedy and try to sell it for more, the only thing you should keep in mind, one the Unbind shop comes out (could literally be any minute/day/week/month) the value of stuff like that is going to change heavily, but we dont know in which way, could either reduce or raise the cost, but i doubt a silversix will cost over 10k CE vanilla (no UV)

so good luck in your decisions
...Ober