Posted By:
jdrumJim,
You make some good points and certainly it is not the case that all high grade (7-up to me) cards have been altered. However, I think it would be very naive to think with the money involved that a significant portion are not questionable. I have no idea what the percentage is. I hate to be so cynical. I have collected over 20 years and have made a number of small finds myself, some of which have yielded a high grade card or to (7's) when graded.