I bought a bumbo off ebay for less than half the price, but my LO hated it and wouldn't stay in it more than a few minutes, it also made him sick! Obviously it depends on if your child takes to it, but for what it's worth, I think they are a gimmick. You'd be better off with an inflatable ring, which are about 10 pounds cheaper and have more months' use in them. From 5 to 9 months he would stay happily in there for up to an hour and when he learnt to climb out, around 9 months, we kept all the toys in there so he could climb in and out and get them. He probably would have used it earlier if I had had it.