It is very difficult to come up with a ballpark figure on the T210s as even ungraded Series 1 cards in nice shape have been skyrocketing. The poster who mentioned that Series 8 cards are more than the lower series cards is correct but I've noticed Series 4, 6 and 7 cards have increased exponentially and are bringing high prices compared to where they were 9 months ago.
One thing to remember is that VG cards, or PSA 3s and SGC 40s, are cards in very nice shape for this set.
All that being said, there are degrees of rarity within the different series and you might see a PSA 3 Series 6 card go for $90.00 and another go for $300.00. The more information you can obtain on scarcities in the set, the better you will do. Good luck, I know I still have almost half the set to go and it is getting tougher all the time with the increased number of collectors going after the red borders.
