Maybe you could sell the single Bob to help fund the new one?
I thought of that, but what if DS is in preschool and I want to walk with just one kid? Would people point and laugh at my half empty double stroller?
I just had my youngest at home this year (sent the other two to school) and walk 3-5 miles a day with just one in my dualie. Sometimes people say "you are missing one", I just laugh and tell them my other TWO are at school. Who cares!
Then my friend had her baby and we walk together with just one stroller-it is awesome! I love love my dualie and use it all the time. My tall six year old still fits if necessary! Last summer I walked with my six and three year olds in the stroller and wore my baby in the ergo.