Y'know, there are cats who are very much like dogs. 
Out of the cats I've had, two of them were pretty
dog-like - they'd wait for you at the door when you return home,
then they will follow you everywhere you go in the house, weaving
in and out of your legs and rubbing against your legs, and then the
minute you sit down, they'll jump up on your lap and purr!
If you're lucky and get an affectionate cat like that, you are
soooo lucky!
Cats are so much easier to take care of than dogs, and on top of
that, if they love you, you feel really really special because cats
aren't cheap like dogs - they don't love EVERYBODY! 
