Having all of the necessary information available right at your fingertips.
You can use them to locate the model you want at a price you can afford.
You can use them to find an inexpensive late model Gilera R6.
That's true when you're buying new motorbikes and it's just as important when you're on the hunt for a good late model used motorcycle.
A quick look at those listings will reveal numerous late model motorbikes selling at bargain prices.