Wish they had them around sooner

With so many little boys in the house, I really have to get the vacuum out a lot. It takes a good heavy duty one to be able to keep it going around here too. A lot of vacuums I have seen lately have special features if you have allergies or animals. I thought that was a great idea. Why did it take so many years to come out with something like that? I wish that they had had those years ago with my cat hair allergies.