I agree. I would try to sum as a couple very original ideas that are more solid, combined with a great many loose associations that are tenuous, but according to the french style, given much weight and pomp; it actually makes the the writing style more inspiring/entertaining, but the ratio of claims to justifications is quite low. I also remember going though a great number of paragraphs without grokking anything at all, but i was also a bit younger then and perhaps able to focus less.

Nevertheless, it inspired me to pick up a few of Baurdrilliard's other books (e.g. Cool Memories) which are even less rational, so S&S was probably his best work.