I am keeping too many breeds, probably, but it is a learning process. Finding the one or two that just flips your switch. Like many people, I was drawn to the Black Copper Marans because of their ability to lay dark eggs. Now I am finding these to be my least favorite, not because of all the work involved to better the breed, which is considerable, but because of their personality and behavior. Perhaps it is just the line I have, but they feather pick each other, I have had pullets pick so much they have killed their penmates; they are not calm and act like you are killing them if you just pick one up (but have to catch them first). I have none of these problems with my other breeds. Now I am a stubborn type person and it takes me a while to admit that something I did is not working out for me...but I'm getting there with this breed.
On the other hand, I bought some German New Hampshires from your friend Matt, Bob, since I was getting Mohawk Rhode Island Reds and Barred Rocks from him already, easy enough to add a few to the order. Now here is a breed I knew little about and bought almost on a whim, and they are turning out to be moving to the top of my favorite list.
I'm not sure what my point is here, other than it may take some time to figure out which breed is best for you and I wouldn't criticize anybody for starting with too many breeds at first.