Just commenting on Absolute:
We used it at my former employer, they will hook you during the sale presentation that if a laptop is stolen, you will be able to perform a remote wipe of the hard drive. Plus, you also have a $1000 guarantee that if they do not find your laptop within so many days, you get your money back.
We had three laptops stolen during my time there. We didn't get any of them back.
After the first one was stolen, I went to perform the remote wipe and found out that the remote wipe would cancel the $1000 guarantee. I think we only got a check for one of the laptops because we could not supply better proof of ownership on the laptops (that one is on the accounting department).