steph posted:
One is a diet pepsi bottle, another is a pepsi bottle that says "two glasses full" and another is a 6-pack in a metal case instead of the cardboard ones used today. I just want to make sure I got my moneys worth, I'm not interested in selling them- just collecting.

So far the only place I know to try to put a value on something like that would be to look around on e-bay. Try to find what you have and see what it sells for. There are appraisers out there, but I haven’t found any online or anything.
I would check with your local antique shops they could possibly put you in touch with someone to appraise what you’ve got.
an item is worth no more than a person is willing to pay for it.
an antique bottle that says diet???
that came out in 1983 so i wouldnt call it an antique yet, retro perhaps
is it like this
as far as the other 2, there are forums on ebay, where experts and collectors are, you should try there, they are usually very friendly and great with advice
Check on Ebay, and Google “Pepsi Collectibles”. You’re sure to find something there
By the way, “Antique” is a word reserved for items that are 100 years old or older. Diet Pepsi was not around in 1908, therefor, that item is not antique.