Fear of "too much poetry" is really fear that you are reading the wrong poetry, that there is something better out there that is escaping notice. This is always, by definition, true: there are doubtless excellent things that I am not reading for sheer ignorance. The idea of Borges' infinite library: there are so many books that any meaningful ones are virtually impossible to find. But most of what you will miss will be not worthwhile either. If you are plugged into a few networks you can find most things by word of mouth. Of course, a reader depending on New York Times Book Review would be totally out of it.