Anything which promotes swapping, rather than shopping is good for me.

We have a five year old, who isn't particularly spoiled, but she does have lots of toys - many of which she's very rarely played with. They'd be perfect to swap, because they've not had much use, and could be swapped for the other "nonsense" things she's seduced by in adverts.

The only issue I'd have is in the quality, and how "played with" items are. I'd like to think that we'd only swap toys which were still in excellent condition, but that's not necessarily how others would look at it.