Since non of us are experts in every chip category except for maybe Gene , here are tw omore scenarios.

1] You purchase a chip for lets say $10 because you like it, You get home look it up in yor reference catalog and see it is worth $250, you

a] Go back and give the seller $240

b] You say to yourself boy did I get a real

good buy

2] You purchase a Chip for $10 because you like it
you get home look it up in your reference manual, find its a fake and has no value

a] You go back to the seller who will

cheerfully return your money

b] You accept the fact that you got screwed and paid a price for your lesson.

My feeling is, whenever you [the seller] put something up for sale you need to do your homework the same as the buyer

Caveat emptor [let the buyer beware] and also the seller.