Actually, over the last 3 days, I am seeing the opposite on a very new site. I am not ranking well in Google yet but it is only 2 months old and
PR 0. The index page was consistently crawled everyday. With every link on the home page crawled every 2 weeks or so. But now over the last 3 days Google has not only crawled deep into the site they have also visited the index page 7 times today and 6 times yesterday. The whole site was due though, but the odd thing is the indexing of the home page 13 times over the last 48 hrs. I hope this translates into a good
PR. I am not a firm believer in content getting rankings for competitive keywords but it does help in the frequency of Gbot visits. Especially fresh content.