The context of the following conversation is casey was a religious follower of the sirius radio station so he stays tuned in 24/7.:
Casey says Do you listen to Sirius?.
The friend responds No, I just listen to regular radio..
Casey responds Oh, you are missing so much. Sirius is great. The variety, the sound, I could just go on and on..
The friend responds Isn't it expensive?.
Casey responds No, not really. I think it's worth it. I know you drive a lot..
The friend responds Okay I'll give it a try..