Howdy, I recently bought a copy of Fantastic Four #50 (last part of the 3 part saga introducing the Silver Surfer and Galactus) off eBay for $20. Now, it's value is aparently estimated around $400 I guess, but keep in mind there's a few little tears on the front cover, a corner of the back cover is ripped about a centimeter, and the cover isn't attached to the comic. The cover is still is fine shape otherwise, and so is the comic, but obviously this isn't worth $400. I'm no expert at grading comics, so what do you folks think this is worth, and what shape it would be considered in? Keep in mind, other than the tears and the detachment of the cover, the comic is geat shape for 45 years old. Also, I've been thinking of perhaps reattaching the comic to the cover with some clear double-sided sticky tape. Would this decrease the value of the comic even more? I realize this is probably a really dumb thing to do, but I'm no real comic valuer (I don't buy comics for their value), and the detachment does kinda bother me. A little advice? Thanks!