Quoting Lacie Heethuis-Roy:" sounds like u know which one u want then and i did spend almost that much on a car seat stroller combo but will switch her to a convertable one later"
I've got 3 seats right now for 2 kids.
My DDs main seat is her Radian, which she RFs in, and her 2nd seat is a Safety 1st Complete Air 65. It has headwings like the Radian, but it only RF to 40lbs and FF to 65. The Radian RF to 45lbs and FF to 80lbs.
My DSs seat (He's ERF too) is a Cosco Apt. It's a cheap seat than can be used for ERF because it RF to 40lbs. I got it because it's shorter and fits behind DHs seat when he drives because he's tall. The only downfall to it is that it also only FF to 40lbs, so it's not an overall seat that will last you a long time besides RF.