i dont think the 590 is that special, its based on 2 already existing cards, so driver updates might fix a few bugs, but i doubt you will see x% gains in every title

and i do agree that for a few driver revisions after each major release, reviews should be done to compare if there are any changes and how good they are

i also like to see reviews where they compare drivers from a year ago to current for cards that are at a pinnacle of price/performance to see how much has changed in the last year

i also just like seeing more and more reviews of different things, so more is never too much, lol