Don't forget, the 1/10 Defence pures will still not be optimal in this new worlds. There won't be any defenceless players running around there like they did in the past, unless they make it appealing to do so (ie: removing Revenants and abyssal creatures for abyss runecrafting. Even then, though, players will choose revs/creatures over PK'ers any day, except for non-cb skillers, but that means the pker can't be over lvl 9 combat to target these players). And JaGeX also announced new hard hitting weapons. So those rune scimmies might not be all too good. The only wise investment, in my opinion, is super sets and lobsters/swordfish. Even then, the update might only happen in late 2009? JaGeX did not release any information on when to expect this at all.