I wasn't sure the
Marathon would fit in my Camry, and since I was buying it on-line I decided to go with the [more] sure thing. Plus, we plan to have more kids so I figured I could move this baby into a different
forward-facing booster when she outgrows the
rear-facing capability of the
Roundabout and use it for the next one

I wanted to make sure I could fit 3 seats in my back-seat if that scenario presents itself in coming years.