It took me a year and a half to get all my Messiers done. Once I had that finished, it only took three months to get the fifty binocular Messiers.
I too, missed one (M28 in Sagittarius and had to wait a good while to finish the list. I didn't tackle the Virgo group of galaxies until nearly the end al well. I person should really go through those objects at least once a year.
I'm going out locally tonight, but later untill the Moon is setting. Good luck to anyone heading out tonight.