Forum Moderators: Robert Charlton & goodroi
If you consistently were crawled at one rate and now you're consistenly crawled at a much less frequently it doesn't sound good.
Have your rankings dropped?
How old is your site and how long have you observed frequent crawling habits by G?
Anything tehnical wrong with your site? Use that new G sitemap tool and it will give you crawl errors
Are some pages crawled and updated with more frequency that others?