Last.fm, is this a joke?

I just recieved the following email from last.fm:

subject: Your free trial to Last.fm Radio is over. Did you enjoy it?

Hi 200iso,

Your free trial to Last.fm Radio is about to end. If you’re enjoying it, why not
subscribe for only $3.00/month and continue listening to non-stop personalised
radio.

http://www.last.fm/subscribe

Best Regards,
The Last.fm Team

What a backhanded way to introduce a paid service. Apparently the last 5 YEARS I’ve been using last.fm have been nothing more than a free trial.

Very weird marketting choice.