The ones from Amazon are priced right if you need 100 of them
This might be good to go in on it with another person or two. The others look like they cost more than the SU ones unless I am reading wrong. The Tape on Line ones are not made of the same plastic that the others are made of...I called them yesterday and they told me that they are made from the same plastic as the jewel cases (the hard glassy kind of plastic). I would say that the SU ones are made of propyl-something kind of plastic but DH informed me that there are TONS of propyl "Somethings"
It's the "something" that you need to know, not the propyl. haha! Shows what I know about the plastics world!!!