You did the right thing, BossPlaya. The Anniversary Collection port was rushed, the dialog boxes didn't look as good as the original version (almost like it was remade in Adobe Flash or something, and the fade-in/fade-out effect of the text and dialog boxes was a bit strange too) and the ending didn't exist, only the credits. ^^;;
I noticed 8 seemed a little rushed too - some of the bosses voices are a higher octave than what they should be. So now, Aquaman's voice is really annoying. Atleast, in the Gamecube version.
So, even though you bought the same game, you would've got you're money's worth for it if you didn't pay $60 for it. X2 and X3, I could potentially see, but not for regular 7.
Oh, and I like 7's password system compared to the other classic series and X. Because it actually remembers what part of Wily's castle you were on and doesn't send you back to the very beginning of the castle stages. Gah! Why couldn't they do that for X and 8? Infact, I hate 8 the most in this aspect, because they have a save system, so they really didn't have an excuse not to continue where you left off in the castle stages.