Originally Posted by
Cyclaholic
I think a bike/trailer combo is more flexible and usually a better option.
You can carry more weight, awkward/bulky items, and load/unload without balance issues with a flatbed dual wheel trailer. When you don't need the trailer you can just unhitch it and have your bike back sans all the excess weight.
Before I bought my Mundo I was looking at trailers. I didn't find any bicycle trailers that got even close to the Mundo's weight capacity. They generally topped out at around 100 lbs.
That said, I agree that if you only have one bike, a cargo bike probably isn't the best choice (with the Big Dummy working better in that respect than the Mundo).