Have you seen the Huion or Monoprice tablets?
Check em - I am thinking about buying one as a cost friendly alternative for a second tablet.
My current tablet (this is the programming half of us speaking, so I'm not responsible for official art, mind) is an old Wacom Bamboo - which is the same standard as current Wacom Intuos. I can definitely recommend these, as they have never let me down.
Tablets without screens are different from using traditional media - but if you aren't already confident with your skills, I wouldn't buy one. If you hit a wall learning digital media, it could make those big investments sting and sour you against your art. I suggest trying something where you have nothing to lose first.
I think it's worth doing searches for reviews similar to the one I linked, as I think you will be able to find a new tablet that matches what you have in mind for cheaper than the going rates on new wacom tablets.