I would like paywalls, but only if they had been extremely different from the current paywalls.

First, I almost never find subscriptions acceptable, but I would happily pay for downloading anything that I am interested in, after seeing a preview that would convince me that the content is worth it.

Second, the procedure for paying would have to be very simple and more importantly, the prices would have to be very low, e.g in most cases not significantly bigger than $1.

I can easily read many hundreds of articles per month, or even per day. A price of e.g. $30 per article is not feasible, except in very rare occasions, for something unusually valuable. In most cases even $10 would be too much for a single article.

I actually subscribe to a few paywalled libraries, but I frequently prefer to take the content that I am paying for from some pirate sites, because those have much faster content searching and instant downloading, while if I go on the sites for which I pay dearly, I waste a lot of time with inferior searching and especially with various slow and annoying steps for authorization.