Jumperoos - worth the money? Which one?

[Starlight85]

I have a 4 and a half month old DD and have been looking at Jumperoos. Are they worth the money and which one would you recommend?

I was originally looking at the Fisher Price for Roaring Rainforest one but then found the Disney Finding Nemo one and it looks like it has more toys around the edge.

I also found the Baby Einstein Activity Jumper which is cheaper (I've found it for £49.99). It looks good but says for 6 months but I can't see it's much different to the others apart from the shape of the stand.

[TeddyIsaHe]

I have just this minute bought one stuck dd in it, and she LOVES it. She's 4 months but hates laying down, and she's so happy boinging away in it. First time in a week she hasn't been whinging. How has you dd got on with it?