I did consider returning the Drive & Play for the whole VAIS unit, but alas, I love this thing (can't let go...). It's so cool, and the beauty of it is that it works just like my iPod; the little controller has a wheel that has all the same functions as my iPod.
Of course now I'm paying $200 (plus the $150 install, but I'd be paying that either way) plus $269, when I could just pay $299 for the VAIS, but I did some reading and I don't think I'd be happy with the interface of the VAIS unit. I read that it doesn't allow all of the iPod features like shuffle and playing all songs from one artist, etc. And I don't like the idea of the text being on the radio screen, it's not enough information in one glance. The D&P display that's mounted on my dash is in a perfect sight line when driving and gives me the artist, track name, track #, and elapsed track time.
So...I'm spending a lot of money but I think it will be worth it when it's all installed correctly.