Those pictures hardly look any different. All it tells me is how good FFX looked for it's time. I really hope no one is wanting to buy the remake just for the (slightly) improved graphics. I guess the extra content that NA never got is an incentive, but not for me. I never play that extra stuff anyways. The games are way too darn long as it is.
I quite liked FFX when I played it, but will certainly never play it again. Even if I had the time I would prefer a new game over one I already played.
Obviously, a lot of people like re-releases and remakes. Whatever floats your boat. I know I'm wrong, but it always appears to me that working on these types of projects means less new games are being made. I understand there's different teams that work on different games, but I can't help but wonder what else they could be doing. Oh, well.