As much as I hate to see the original materials wearing down and fading, I think we'll be alright. I love the authenticity of playing Melee on a Gamecube attached to a CRT, but I could see that becoming more difficult in about 5 years.
Lagless LCD setups are already possible, and I think more people will come around to it when they have to (I'll admit, I don't like it and avoid them when I can.) Wiis loaded with homebrew and Melee isos are also becoming more common. Cube controllers just got a new run, so that's pretty nice; controllers may eventually be replaced with new products though; we're already seeing efforts like that with the Smashbox-likes.