Becky, you can easily get used tandems. We got ours, a '91 Burley Duet--I grant we were lucky--for $350 at an LBS that sells both used and new bikes. If you have a local bike club with want ads on their site, I am sure tandems will show up. We can't commute together, but have put 5,000 miles or so on that bike over the last four years.