I did enjoy the CART race last weekend too...what I like about CART is that the races are so exciting because there is lots of passing going on and you never know until the last lap who will win. CART also has most of their races on North American soil so you can watch them in late morning/early afternoon.
Formula 1 in comparison have most of their races in Europe and us on the West Coast have to wake up at 3 or 4 am in order so see them live

. Back on the east coast, I could manage to wake up at 7 or 8 pm on sundays but 3 or 4 am is just way too early

the only races I can comfortable watch are the ones in Asia as well as the Canadian and US grand prix
Ok, formula 1 is more technologically advanced but the playing field differs so much from one team to another. The budgets in Formula one vary alot so you have Ferrari which tests their cars almost every day of the year and you have Minardi or Arrows who don't have the money to test their cars that much and that makes a big difference on race day
But yes, CART offers a great show and I can't wait to hear their 900 hp turbo engine roar in the streets of downtown Vancouver in july!