price/prices etc.

[amob005]

Which is correct?
1) Factory price on all products.
2) Factory prices on all products.
(Assume that the products are different and not all the same price)
Another one:
1) Electronics bargains
2) Electronic bargains
(Electronics here refers to televisions, computers etc.)
My opinion is that in the first instance 2) is correct, and in the second instance 1) is correct. However, I am not certain!
What do you think?

[Fazzu]

Maybe,I think for the second one you should use the apostrophe:"1) Electronics' bargains".