Should I get a SNES or SNES II or is there any difference?

[bargora]

So how can a composite video to s-video adaptor justify its existence? It is essentially a scam?

Well, if your TV won't read the composite input when you have an S-video cable plugged in, and you're like me and don't want to go behind the TV to swap cables, then I suppose it would be justified if it didn't cost too much and if you didn't expect the composite artifacts to magically disappear.

[Chunky]

Please stop pushing the A/V to S-video adapter. It does not improve quality as video artifacts, once introduced, cannot be removed.

I always wondered about these. seems like every digital camera you buy now comes with one. but i have never used it on a console.

[Eternal Champion]

OK, on related note--what about
a composite to s-video convertor, not adaptor:
http://datapro.datapro.net/products/CSV-900C.html
This thing apparently has filters that separates the signal into chroma and luma...but, as posters have said here, if the video signal is composite, does it still have artifacts?
This "convertor" is $80!!! I would hope that it makes a difference...but for that price, it's more worth it to find an old RGB monitor and get a custom cable...