Most of my tickets will have a specific grade from PSA. The tickets that are graded "authentic" likely have defect that would have significantly impacted the grade. Chances are good that you will see that defect in the scan.
Regarding offers: I'm always open to offers on items when you find a similar active listing posted for less. Honestly, I don't get offended by someone that takes the time to submit an offer. Submitting the same offer over and over..... Joking aside, everyone has a different take on how to value this emerging collectibles category. Include a little research with your offer and I? This item is in the category "Sports Mem, Cards & Fan Shop\Vintage Sports Memorabilia\Ticket Stubs". The seller is "feedback_positive" and is located in this country: US. This item can be shipped to United States.