The cost of a bike is still cheaper than purchasing a hybrid. With a bike you don't have to pay for the fuel costs, whatever fuel it may take. There are several different types of racing bikes that you can purchase.
A bicycle
Probably not a lot, bicycles rarely become expensive collectibles. Look for similar bikes on ebay, craigslist and such to find out what they sell for.
That will depend entirely on what type of racing you intend to be doing.
It is used for bicycle racing.
Velodrome
One A Season of Bicycle Racing - 2007 was released on: USA: 14 April 2007 (DVD premiere)
yes maybe
Sailboat racing
bicycle racing
These days - usually not.
It's a track for bicycle or motorcycle racing.
Bicycle racing.