Product (item) comparison through views

Problem/Motivation

When building views with a large amount of items that can be filtered down to a smaller amount. There is (at this point) no proper way of selecting a couple of items to compare them side by side inside a following view.
It is a very common way of helping users (anonymous) choose between similar items. And other uses could be thought of as well. It would be very useful to make Drupal stronger on building e-commerce websites.

The only way to do this without custom development at this time is using flags. In my experience that doesn't work well at all because it causes caching issues.

Personally I think this feature would suite views instead of it being a separate contributed module.

Proposed feature

My suggestion would be to introduce an option inside views to select a set amount of items that can be selected(check box) that are stored inside a cookie and can be viewed using another view display.

I am no coder but I imagine it to be possible to create a cookie that can contain node id's that can be used to create a second view that uses the node id's inside the cookie as arguments for its query.

If there is interest in this option or if it is already being considered, I would be glad to help out on detailed requirements and UX level.

Really hope this could be a feature that will be included inside views because it would make drupal stronger in my opinion.