For me, it would take a few thousand (maybe 3K). Especially if you are trading in a bike (at least here in Ohio, you subtract your trade in from a new car/bike price and you only pay taxes on the remainder, you have to pay the full tax amount on used cars/bikes).
Whatever the case, I would look over the bike very carefully... Any minor scratch will bug you going forward (it is one thing if you do it, another if the previous owner did it).
Another thing to consider is any additional parts they put on... would you have put the same part on (especially exhaust)? Unless it is really what you want, it probably isn't worth it because you will end up replacing it anyway.
Just my thoughts.
Whatever the case, I would look over the bike very carefully... Any minor scratch will bug you going forward (it is one thing if you do it, another if the previous owner did it).
Another thing to consider is any additional parts they put on... would you have put the same part on (especially exhaust)? Unless it is really what you want, it probably isn't worth it because you will end up replacing it anyway.
Just my thoughts.