Like others have said, obviously those things should be in the game already. However, since they likely won't be if I had to choose between not having them altogether or having them, I'd throw down 5-10 bucks.
I don't buy a lot of DLC, I've never spent a single penny on any Ultimate Team mode (and never will), but if I see something that's of value to me, something that's going to give the game more life and add a ton of "replayability", then I don't mind paying a little extra.