The Company orders their Taiwan supplier to paint them all a different color every year ...

All 3 years are on the floor? why not Look at them, there .. and figure it out, and ask the shop staff ?

here we only get them when the customer asks it to be ordered , since Trek's 520 is also available ..

As a cycle touring Destination town people passing thru have all that stuff ,

the other 3/4 of the year the locals buy stuff , so that is a lot of the inventory.

AFAIK now disc and Rim brake LHT are parallel products .. Tell the shop what you want, components can be changed .