Re: 23# 14mo needing a new carrier... suggestions?
They are expensive. I don't know if I've ever even seen the Boba on sale. There are a bunch on FSOT though. The Beco butterfly is another one that might work for you and there are a bunch of those floating around FSOT too.
I think the baby chooses where to put her arms. When they are small they tend to tuck them in.