I was thinking of getting a tandem so I go on longer day or weekend rides with my son. I to have a trail-a-bike but I bet a tandem would be more stable and nicer especially once he gets bigger.
Anyway, on the local craigslist I found an 10 speed Schwinn for about $300 but after looking around I could get a Wal-Mart type
21 speed for even a little less money.
So what are your thought would the Schwinn be worth it? I'm a little hesitant since it's probably quite old (early 70s?) and only has 10 gears which might not be so nice on hills.