"It's unbalanced when you think about it. Casters get to use everything at their disposal PLUS wizard oil, while rogues have to sacrifice their poisons to use sharpening stones. This makes rogues have a dps tradeoff that casters don't have, i.e. we lose some dps (our poisons) to gain a little more, while casters simply gain dps. Period. So in the end casters benefit from oils WAY MORE than rogues benefit from stones."

Hmmm - I've thought about it, and it's balanced just fine, rogueboy :-). You can apply a poison, which provides an additional effect beyond your base weapon damage, or you can apply a stone, which stacks additional damage to your weapon. I can apply mana oil, which provides me with an additional effect beyond my base weapon (mana regen), or I can apply wizard oil, which stacks additional damage to my weapon (well, to my casts, since my weapon is nothing but a shiny stick/piece of metal that I never hope to swing at anyone). In both cases, you have a choice and I have a choice, and the choice to do one negates the option of the other.

"Blizz should of just allowed rogues to use stones AND poisons, but taking both oil and stones away will have to do."

Absolutely - and they should allow them to fly and tank too. Every class has a buff/mod tradeoff - every class. As it is, other classes are losing stones and oils, and you're keeping your stones - quit your whining.