Need some help in sell/trade value on this card.

[pay2play1983]

I am going to be selling this or trading this in the future, but I have no clue what value to put on it. I can't find any sold on eBay and one is up for sale buy it now or best offer $425.

2012 SPX Brandon Weeden spectrum rookie patch auto /25
http://i285.photobucket.com/albums/ll58/sufi1983/72D7A377-B25B-41D8-9153-F8D52DEF11BD-884-0000011F72D5816B.jpg

Thanks for any opinions or help.

[TheBurg]

Slap it up at $390 OBO, anyone who wants the card should make an offer on yours. GLWS.

[pay2play1983]

Thanks for some input