I just saw that Britax is doing their Free Ride event again. Last year we were able to get the B-Ready stroller and the Chaperone infant carrier car seat for $400. You buy the stroller full price (Amazon typically has the best price and lets you use a registry completion code too) and you get the car seat, bassinet, or second seat for free!
I was in love with the UppaBaby Vista but couldn't afford a $600+ stroller plus $150-$200 for a carseat. I didn't love the Chicco and as a set it was still almost $300 for the stroller and seat. I am so happy that I spent what I feel a reasonable amount for stroller and car seat for something that has all the features I love (more review and pictures on my blog).
The colors do start to sell out on Amazon!