How many times do you get to watch Barcelona?!! Well, seeing as they feature regularly on several different channels, and every single game of theirs is available online, I'd say pretty much all of them, should you wish, of course.
You're right about the 90 minutes thing though, you don't have to watch a player play to get an impression of how good he might be. However to describe someone as exceptional without actually seeing them in the flesh is a bit much, surely? And the reason I am excited at the prospect of Rodriguez is that, as I already mentioned, he scores with his left, his right, his head, from outside the box, makes darting runs, takes on players, plays in several different positions, and is only 22 years old, and thus still has time to develop, which makes me very confident he will cut it in the Prem, despite having only seen him play two times. Hooper, personally, does not excite me in the same way, because he is simply a poacher, of which we already have a good one. My negative opinion, as you call it, is also explained in my first post; it's because he has only scored in the SPL and the Championship, and is a fairly one-dimensional player, the likes of whom, would get pocketed by any half-decent prem defence.