Beth you are Crazy!  and I hope you stay that way sane people are so boring.

 

Blue book bicycle pricing is the same as pricing a house. A bike in one market will bring a different price in a different market. A three bedroom Victorian house in the middle of a corn field will bring a different price in down town Chicago, Boston, San Francisco.

 

Some markets have fads they go though. The west coast has a mini fad of old TT super bikes from the 1980's ( does anyone remember the 24" front 700c or 28" rear wheeled bikes? I have two of them. Fast and painful to the neck.

 

New and used cars are kept at superficial price by nation wide dealer networks, New bikes are under the same control from the manufactures, Used bikes are not sold buy most shops so they are priced at what the local market will bare.

 

A car is also priced by mileage, All car have odometers All bikes do not. Hard to tell how many miles are on the bike.

 

Hard to swap out drive train in a car, easy to replace derailleurs, chain, cogs, chain rings, wheels.

 

Cars that are modified are discounted at the dealers and sell better on the open market. Bikes that are upgraded are no big deal because all used bike are sold on the open market.

 

I say go for it, There were blue books in the past for bicycles and you can do anything you put your mind to. It is also a big project with no end and constant updating.

 

 

The BIO cleaner is a ball of wax,  it is good to use Bio solvents (citrus oils or Detergents like Simple Green, Dawn) then filter the water and put a oil filters in a enzyme bath that will eat up the oil. I have not seen enzymes that work fast enough to clean a chain in 10 minutes. I do know enzymes will chew up oil over time in a barrel out back.