Yup. That's true. It took me 2-1/2 years or so before I was ready to get another cat.
Now, with our 14YO doggie who is on comfort care now with an inoperble tumor and who has only days/weeks/possibly months until she needs her reservation for the trip to the Rainbow Bridge, I decided that the time to get another doggie, if at all possible, was while she was still around (a) so it wouldn't seem like we were just sitting around waiting for her to go and (b) so I wouldn't feel like I was replacing/succeeding her.