It probably all depends upon your situation.  Not owning any land I think a little less than desirable disposition might me desired.  I have to run my cows on leased ground year around.  I guess if I don't want to handle her I probably won't have to worry about anybody else wanting to either.   Those kinds of cows tend to keep pregnant, usually raise a good calf, and you don't have to worry about someone else loading them up.