and after an accident with her grandparents, where the sides of the seat kept her from hitting her head, I am going to keep her in this one until she complains about it (she is 5 now).
I would seay it depends on the child. I moved my daughter into her booster (with back) when she was only 2 1/2. We needed the baby seat for a new baby and didn't have the money to but another one. She was well within the height and weight ranges so it was safe. I have tried switching to the backless once but the seat belt just doesn't hit her right, and after an accident with her grandparents, where the sides of the seat kept her from hitting her head, I am going to keep her in this one until she complains about it (she is 5 now). Her sister is much smaller, and at 2 1/2 now she isn't ready to come out of her seat by far. Really depends on the kid
why you're looking for another seat at this point? The Britax should last you awhile yet. That is one of the best seats on the market.
Well, I'm about to have a new baby and I definitely want him in a Britax Marathon....without having to buy a new one. I mean, I understand that she's still within the weight/height requirements for that....amongst other things. The seatbelt falls on her shoulder, not on her neck and she could honestly get into something else and I could use the Marathon rear-faced for my baby. I've still got a few years left in that thing. There are plenty of seats that I've been looking at from aap.org that are way more reasonbly(sp?) priced than getting another Britax for baby #2. It's not like I'm forcing her out of the seat, I'm making sure I go by age/height/weight requirements for everything and what I personally think she's ready for. I'm just looking for some recommendations for something other than a Britax. PREFERABLY something less than another $200-$300.
How about putting the new baby in the Marathon, and getting a Graco Nautilus for your older child?
ETA - I believe the Nautilus retails for around $150.

Glad the mentions of the Nautilus are being noticed.
To the car seat experts...what's the visual reference for being too tall for the Marathon? The OP stated a height range, but I know with my Roundabout it was more like "one inch or less of shell above" a body part (I think with later Roundabouts it said head, but with mine it said top of ears?), so I wonder what your thoughts are on that?
Glad the mentions of the Nautilus are being noticed.
To the carseat experts...what's the visual reference for being too tall for the Marathon? The OP stated a height range, but I know with my Roundabout it was more like "one inch or less of shell above" a body part (I think with later Roundabouts it said head, but with mine it said top of ears?), so I wonder what your thoughts are on that?
Not sure what the name is but look at "Sunshine Kids". They have the best, high back booster for taller, larger kids.
I have bought many and finally found this one...just bought one for my son.
I believe I used elitecarseats.com to purchase....around $130.00 each.
Well, I'm about to have a new baby and I definitely want him in a Britax Marathon....without having to buy a new one. I mean, I understand that she's still within the weight/height requirements for that....amongst other things. The seatbelt falls on her shoulder, not on her neck and she could honestly get into something else and I could use the Marathon rear-faced for my baby. I've still got a few years left in that thing. There are plenty of seats that I've been looking at from aap.org that are way more reasonbly(sp?) priced than getting another Britax for baby #2. It's not like I'm forcing her out of the seat, I'm making sure I go by age/height/weight requirements for everything and what I personally think she's ready for. I'm just looking for some recommendations for something other than a Britax. PREFERABLY something less than another $200-$300.
That's not bad, especially considering that it does convert to a high back booster and then to backless. By the time she's out of that, he'll be ready for it.
I was just coming to ask about one I saw called the Sunshine Kids Monterey. Any experience with this one?