Problem for most is; using a KMS activator is illegal; because they never purchased the license for the group they are activating to.... and 90% of those people don't even have a key for 10 to use to begin with.
In layman's terms: for the greatest portion of the population; using a KMS activator would be illegal. ( Foremost being not owning rights to the keys they are using, and secondly not following the EUA for said license; Take the Pandaminer as a prime example)
Agreed the SSD sending is a waste of $$$ also because it won't be activated on the new machine. (even though it was activated on the machine that installed it).
We are using these "benefits" until we can, until some regulations will affect it. After that I'm pretty sure we will be the nation with 98% of linux users