Hmm still considering... went to website http://www.nationalbikeregistry.com/register.html
and they offer four types of registration:
$10 will cover a bike for 10 years.
$25 will cover a bike for 30 years.
When you replace your current bike, contact NBR for a new label and certificate, limit one bike at a time.
$25 Family Registration will cover up to 5 bikes at a single address. Each bike is registered for 10 years.
99cent Stolen Bike Registry.
You can register a bike AFTER it has been stolen. In the event that one of our participating law enforcement agencies finds it, it can be returned! (This registration is for one bike, for six months, and does not include a decal or certificate).