You can use them to find an inexpensive late model Vespa Strom.
Within a few mouse clicks you'll be staring at a complete overview of the pre-owned motorcycle market.
Those deals will amaze you.
That strategy can work, but it has a very big drawback.
You may know about some of them, like the ones that are listed in the local newspaper, However, you probably only know about a fraction of the options available to you.
There's an alternative, though.