I also got some small scratches inside my tank... what made it worse is green algae started growing in the grooves and made them even more apparent.
I've done a pretty good job looking past and forgetting about the scratches, but every once in awhile I'd see them, get extremely upset, and then realize they were the same scratches I "forgot" awhile ago...
I guess this will be a good training for when I get an acrylic tank... if I can scratch a glass tank, who knows what I'd do to an acrylic one! wndr