dcollins
Explorer
Kyrail said:DMG 3.5 260 has the Ioun Stones listing, and while in a foot note it says stones will burn out turn dull grey and become forever useless, they dont list a price, and they're not on the table. It actually seems to sugest they don't do anything, let alone fly. But as has been the case many a time, I may be on the wrong page.
That's a change in 3.5. Every previous edition (1, 2, 3) has had the "dull gray" one on the table. Lots of us will still be thinking about that.