A bike that carries things?

You will be hard pressed to find a second hand christianna. Most people hold on to them once they get them. The same with most cargo bikes, really.

This makes sense to me. If I wanted to simply ferry the nippas to nusery, then sell on, when they grew out of it, or lost interest. I'd buy a trailer. I'm thinking of all those times I need to pop out to pick some stuff up, and my panniers are just not up to the job. I then need to take the car, which bugs me as I'd rather get some fresh air and exercise. I'm definitely thinking long term.