I have one that goes front to back and side to side. I got mine on clearance at Babies R Us for @ $90. I loved it. My daughter loved the side to side, my one twin loved the side to side, and the other one loved the front to back. Check out consignment sales. I see swings there all the time. Check out Just Between Friends and see if one is coming to Pittsburgh, or Divine Consign. Craigslist also has them. Mine takes batteries, we used it for 7 months with my daughter and never had to replace the batteries. For what it's worth, all three of my kids loved the vibrating rocking chairs much more than the swing. For my one son, it was magical. No matter how upset or cranky he got, he would settle down the minute he got in the vibrating chair. They can be pricey too, but the magical chair retails for around $30. We have another one that we paid $70 for, and the fussy son hated it. Good thing the other twin loved it. They are also at consignment sales and craigslist all the time.