I'm thinking about picking up a Wacom Intuos5 tablet to do some graphic design/hobby drawing work. I've heard elsewhere that large would be good for illustrating/CAD/etc., whereas the medium is better for photo touch-ups and stuff like that. I've also heard monitor size can be an issue - mine is a 27" 1920x1080.
What do you think? There's definitely a price difference. I wouldn't want to get the large if I'd probably just end up using the center of it. On the other hand, I'm worried that drawing might feel a bit cramped on a medium. Any advice?