I suppose it depends where the review is going to be published.
On an internet forum or high end magazine there's the room to write 1000 plus words and go into history, influences and comparisons.
Plus, the reader will usually take more time to actually wade through it.
For the casual reader a long-winded review is too much trouble. Look at reviews in the daily press and general interest mags and they will be a couple of paragraphs long.
I'm not meaning to have a pop at
@FogBlueInSanFran or the others that put their thought down on here. When i have a spare week i even read them and have got some good snippets of info.