Let me weigh the costs for you:

Sirius Connect Kit - $299. As I stated in my previous two posts, you will in fact not have text.

Sirius Direct Kit - $600 plus $500 for an upgraded head unit, along with upwards of $100 in wiring harnesses and adapters to upgrade the tuner's wiring to the updated version of the tuner.

While I cannot speuclate as to your anticipated state of happiness after a purchase, I suspect you'll rather enjoy the $300 system.