So wish I had bought one with my first!! I've rented one with every pregnancy since my second. I always rent it for just a couple months... until I'm feeling regular movement. That ends up being about $50 each pregnancy though!! You know, I think I'm going to buy one this time. Even if this is my last I can sell it for at least $30-$40 and spend less then renting.
Good call Laurie! You totally can sell it for that much afterwards. Around here anyways. Because I had to pay shipping and exchange on mine (I'm in Canada) it ended up costing me closer to $100. Still worth it though. I've lent it to a couple friends since DD was born and they've enjoyed it too. I was just thinking last night that I need to check the batteries in it...I'm not sure I've ever replaced them!
But don't get down if you can't find it. I've tries a few times since and sometimes baby moves to where I can find it.