Yeah IANAL obviously. I'm from Europe and basically treat them as non-binding suggestions. In my layman's understanding they aren't valid as nobody reads or signs them, but be aware that your local court may decide otherwise if push comes to shove.

IANAL but the article you link to claims that it is unclear in the usa if shrink wrap contracts are enforceable/real contracts.

IANAL but I thought contracts needed acknowledgement from both parties. Mr software vendor, can you tell me weather or not your company has entered into a "shrink wrap" contract with my client? Or me? Or the honorable judge?

Please be careful when citing Wikipedia, it's notoriously shoddily written and is at best usable for finding primary sources. Wikipedia rated that article as "Start Class", which means it's far from complete or informative.

>The legal status of shrink wrap contracts in the US is somewhat unclear.

The EULA is the only thing that claims clicking the "I Agree" button means anything other than "press here to install". If you reject the terms of the EULA and press the poorly labeled install button you haven't agreed to anything have you? What if the software company doesnt exist any more? Who is the other party to the so-called agreement?

"Shrink wrap contracts" haven't been a thing in the EU for many years. They're definitely not considered contracts, that's for sure.