I've been wondering lately about this high SBD price. On the one hand I don't complain because it helps to build up my SP what makes curation more rewarding.
On the other hand a stable currency pegged to the dollar withing the steem ecosystem is a good thing. I gives stability in a highly unstable market. If you for example want to start a shop and sell some steemit attributes, a stable currency gives your shop more stability instead of a currency that fluctuates extremely whiting a 24h timeframe.