I've never brought one of those ones myself because I couldn't really see the point of them, most of the time you only get a few months out of it before baby isn't interested or is mobile enough that they don't stay under it for longer than it takes to roll away from it LOL. And yeah, the price does tend to put you off - I've seen some for well over $100. We did get brought for us though by MIL a Sesame Street one that goes over a rocker chair/bouncer and it converts to a track and Elmo in his little car drives around it for when they are toddlers, so that had longevity, as did the Fisher Price piano thingy that my mum brought when #3 was a baby.