Broken Cyberware—too bad Options

[Eyeless Blond]

What do you think are the most useless pieces of cyberware/bioware/nanoware in the SR3 books? In this case, "too bad" means that it is insufficiently useful in some manner (for example by providing negligible benefits (or detriments outweighing benefits), by having a cost in nuyen or Essence that is too high to justify the benefits it provides, or by being too narrowly applicable), or is rendered worthless by one or more pieces of gear (cyber or non-cyber) being strictly or almost strictly better than it.

Canonical examples include:

Move-By-Wire, which is fantastically expensive in cash and Essence while also being a one-way ticket to the grave
Cyberhorns and Cyberfangs (for being almost strictly worse than the bare fist)
Math SPU ratings other than 3, for being so close to the SPU 3 in costs but meaningfully less in benefits
The Adrenal Pump, for having a bad trigger and also for the punishing "drain"
Pain Editor, for having no effect whatsoever on Physical damage while having penalties other anti-wound-penalty gear doesn't get. Additional penalty points for not working on injuries that High Pain Tolerance will work on.

Others?

(Note: This thread is an offshoot of the SR3R -- Shadowrun Revised project. The project is being hosted elsewhere, to divorce concerns over copyright from Dumpshock, but topics like this I feel are perfectly fine on these boards, and may help garner more responses. If you prefer, you are more than welcome to register on the SR3R forum and post there; we would love to have more fresh bodies working on this project.)