I've read both editions, and the expanded one just includes around 400 extra pages of stuff. It doesn't really expand or improve on the story - I wouldn't say it detracts from it really, but it's mostly just bloat - like when you watch the deleted scenes on a dvd and they're kinda interesting, but also you can usually see why they didn't make it into the finished product. I like the book so I was excited to read the expanded version, but the original text has a leaner, sharper feel to it. If you're a metal fan, it's like a modern Iron Maiden album compared to a classic one.
It does introduce a new character called The Kid, who is a seriously nasty bit of work but ultimately he adds nothing to the story with his over the top sociopath antics.
I haven't read an updated non-70s version of it though, I can't see how the book would work in the 90s or how he'd do it. Just describe people as wearing plaid shirts? Get a POGS reference in there somewhere?
It does introduce a new character called The Kid, who is a seriously nasty bit of work but ultimately he adds nothing to the story with his over the top sociopath antics.
I haven't read an updated non-70s version of it though, I can't see how the book would work in the 90s or how he'd do it. Just describe people as wearing plaid shirts? Get a POGS reference in there somewhere?