Hey Phrixxos, the Sculpt is definitely a good keyboard...I've loved it! I think only a few of the posts on this thread have been in reference to faulty transceivers on that model though...it's a pretty new one, and the thread goes back all the way to 2009.
The transceiver itself seems to be of pretty good design and solidity, and I doubt it's just been crapping out on people due to poor design. It's not a true nano-receiver like some, as it sticks out about a centimeter or so, and I suspect most of the issues
people have had with it is due to physical breakage from use on a laptop or something like that. Mine was simply a matter of losing it (nothing wrong with the dongle itself, other than being too small to find!).
As as far as their asinine replacement policy, it appears that they may actually be correct as far as what they told me. I have a friend who bought the Sculpt desktop at the same time I did, so I was finally able to borrow her transceiver yesterday to prove
my point that MS is just hoarding the devices and not wanting to share. When I plugged in my friend's transceiver, my mouse and keyboard (we both got the combo set) would not function. So evidently, the transceiver actually IS specifically paired with the
peripheral(s) it is sold with, and not just a generic device. There are no pairing buttons on the keyboard or mouse, so no obviously easy way that I can see to connect it with a different transceiver. There may be some way to hack into the drivers and settings
and change things from there, but I wouldn't have the first clue how to do that...no coding or computer science experience for me! :/
If you're looking to get the Sculpt for a desktop or something and don't plan on pulling out the transceiver all the time, I really would recommend it in spite of the misgivings you mentioned!