DH checked out the ebay and Big W ones and decided that the "proper" bike trailers (ie: $500 plus) were worth the money. The cheap ones are heavy to lift in and out of a car, don't fold down as small, don't turn as well, aren't as comfy for the kids. By comparison ours (a Trek) weighs 12.5kg, I could lift it when 9 months pregnant, it fits in a commordore stationwagon or standard car boot, turns a circle on the spot and is comfy and roomy. I think if you want it to be a good trailer and double as a pram you should spend the extra $$.

All of this said, I am sure there are people who love the cheaper ones. I would just consider the above and do a side by side comparison before choosing. For the sake of a few hundred $$ over the lifetime of use.....

Chariot make *amazing* ones but they are quite expensive, but Trek is made by the same company and is the cheaper alternative.