How does your group handle cyberlimb accessories especially removing and installing them? If I wanted to get a datajack for my cyberlimb would that be as hard, harder, or easier than getting a datajack in my head? What if I later wanted to remove the datajack to make room for something else?
I myself see most accessories as fairly plug and play features of hooking up the accessory to various standardized ports. On the other hand, I can also see it being a tricky rewiring job for everything. RAW, I think the accessories are just treated like any other piece of cyberware. I am however curious as to the opinions of others on this matter.
You can't change out features that directly increase the availability and cost of the cyberlimb (such as customization or optimizations) any more than you can't directly "upgrade" a basicware arm to an alphaware arm. You'll have to buy a completely new arm.