Why would you want to hide your ass?
To answer the OP's question.
If you are going to be a new subscriber which I gater from your other post and are getting an HD/DVR, it is free when you have the system installed.
That being said, for sure get it.
This will allow you to do Video on Demand (VOD) which does include some free content.
It also allows you to do DVR2PC
I also suspect that as technology advances there will be more cool features.
That being said, if is free, it is 100% worth it and it is not necessary to "hide your ass".