So basically what you're saying is a lot of folks are missing the real deal when it comes to bookies versus prediction markets.actually with a bookie it's  basically you against their odds kinda like a simple yes or no. But with a prediction market it's kinda like a true market. you're trading against other people trying to buy low and sell high.
Actually the big difference isn't really decentralization or crypto it's mostly how you play (fixed odds with a bookie).