The idea is simple. Finding a good price for a product can take a long time even using the Internet. So I wonder if one could include a #hashtag with the price information for product images. Then our popular search engines could optionally include that in an updatable price text together with the image.
So with this idea you could google prices for many products. Then if you like the product then you could turn on the price information directly from the search engine.
I wonder if the alt attribute in HTML image tag could be used for this. Just add #Price 123 USD. If not then maybe this information could be accesible to the search engine from somewhere else.