I have entered all of my books. I only have 330 because I did a severe weed of my books when I moved house a little under two years ago.
I still have to enter three books that my Mum has borrowed as well as some books on the from Amazon.
It only took me six days to catalog my collection. I still have to fine tune my catalog i.e. enter books into different collections (i,e, scifi, history, crime etc), add tags, and scan in covers for those books that librarything didn't have pictures for).
I am a little embarrassed to admit that I have so few books.
I haven't entered books owned by either of my sons.