Verifying refractor lens about scratches
Price vs. quality.   You're unlikely to see any significant degradation in the final image if those are scratches.  However,  that is not how you should make your purchase decision.  You want to inspect the entire body for any evidence of dents, bends, etc. which indicate rough usage, not to mention misalignment of the optical elements. 

If you can't try out the 'scope in person, make sure there's a 100% refund guarantee before having it shipped to you.